On a saragosa 5000..change your line for HMP 25lb 8 strand casting line. That should do it..It is not the rod loading as it is different weight plugs..Friction through guides and off the lip of the 5000's small spool is costing you I think as well as maybe air resistance of a line of that diameter which is possibly too large for application. If you still are not getting your distance after dropping line diameter and putting as premium line on, get the rod redone with the right Fuji anti tangle layout in stainless alconites for the best bang for buck.
HMP might be a cheaper line here in SA but I've fished a whole lot of braids and HMP is without a doubt better quality in my opinion actually than mid range stuff I've fished. I have HMP on all my braid outfits by now, comparably to only a high end jap braid that I had spooled sometime back. Breaking strains are as advertised, no "30lb line that is actually a 50lb" type stuff as other brands do..Do not know boss braid nor its diameter but what I can say is that every other brand that I fished except the jap high end and HMP understated breaking strain and diameter. Some were twice as thick and had a ropey feel and then I wondered why I was getting no distance...
Might be cheaper to buy a new loomis 11ft XH or standard for the weight plugs you fish (with the correct layout and guides already and HMG blank) than to redo the eyes though, I might warn you.
With an 1.5 oz plug and 11ft HMG grinder rod, correct guides and layout, correct quality and diameter line and shimmy 5000 you should just be able to lob the thing like a pleb and it should fly a mile..otherwise if you still can't cast the thing to the blue, left elbow up, follow through with the hands..cast much further if I need to now that I don't lob it, but even in the past with decent rod, 10ft, k@k guides, with nice reel or not and thin line I could lob it pretty far enough..
AA11-2H / AA11-2HMGS : 2 piece with BAG Recommended Casting Weight: ¾oz - 1½oz (21g-45g) PE Rating (Braided Line): PE 1 - 2 (15lb - 30lb) LENGTH: 11’/3.3M
http://www.fishingworld.com.au/how-to/what-is-pe-rating
https://www.henry-gilbey.com/blog/pe-ratings-breaking-strains-diameters-i-am-confused
Your rod meant for line with real diameter of .165mm (pe1) and .235mm (pe2) and light plug. I can guess pretty accurately that your 30lb will be well over that..If the weave is rough it will make the problem worse or like 832 if it has a different fibre in that makes the weave uneven can make it worse..As a line gets "stronger" the amount of material and the surface area increase exponentially and thus so does the air resistance and line friction. A small light lure can't over come this and distance suffers dramatically, a heavier lure and rig it will make less difference.
"HMP ( High Molecular Polyethylene ) is a ultra thin braided fishing line manufactured in KZN. The line is braided coated, heat stretched in the factory in KZN. The line strength 25,35,50,75,100,150 & 200Ibs all 8 strand.
25Ibs an excellent choice for Bass Fishing
35 & 50Ibs Rock & Surf or Backing
75 & 100Ibs Leader Line
150 & 200Ibs the ultimate line for the commercial boats for deep water with no drag.
All the lines are either supplied coated natural or colored yellow or green.Below see number of filaments to strength. The coating and the density of the Braid improves the abrasion and having no memory of the line
25Ibs & 35Ibs have 15 filaments to one 8 strand = 120 filaments The choice of the number of filaments makes the line supple for casting
50Ibs & 75Ibs 8 strand has 65 filaments = 520 filaments.
100Ibs & 150Ibs 8 strand x 90 filament = 720 filaments
200Ibs 8 strand x 180 filaments = 1440 filaments"
That from HMP's facebook page and illustrates how much material a line contains goes up exponentially as breaking strain goes up. I once put some brands 30lb on my light rig as there was no 20lb available..sheeesh..no distance. Now that brands 30lb is thicker and rougher than HMP's 50lb 8 strand and it was no brainwave as to why I was casting at my feet. Before the reel had the same brands 20lb and was ok, line not the strongest either, replaced that with HMP 2 years back with the 25lb and it is thinner than the 20lb of the other brand by a decent margin and breaks at 25lb or so unlike the other 20lb that broke at over 30lb until the different fibre had perished then it was considerably weaker. The HMP is of higher grade spec PE used I am sure of too and lasts longer than the other stuff I have used. Some stuff was frayed after a few fishing sessions from casting, HMP has caught fish after fish, season in and out, and they don't lie about their breaking strains to make it look like their line is quality..
The manufacturers of HMP imply in between the lines that their line is of the best, they are allowed to use the dyneema brand in their marketing, of which very few factories in the world actually can (as far as I know) and denotes reputation and quality. They actually understate how good the stuff is, and give accurate breaking strains and let the line speak for itself. I take my hat off to them. Change your line first, guides second, if that doesn't work, learn to cast a multiplier properly with proper instruction, and apply that technique back to the grinder and you will be more accurate and cast further with far less effort.