Scheeps
This is not going to be a lecture in casting but rather a short guideline.When casting a rod the angler has to be able to load it,basically you must be able to take all the bend out of the rod so that in the late stage of the cast you can hit against a solid rod(all the bend removed by loading the weight of the sinker and/or bait.) It would be a gross generalisation if one would advise you purely on personal preferences as to what rod is best for you specifically
..For example caster 1;100 kilogram pure muscle, can load rod X to the max and then belt out an 8 oz lead for 130 meters.
Caster 2 weighing in at 75 kilo's cannot necesarily load the rod to its potential and arguably cast 100 meters with same sinker(imagine shooting an arrow from a halfloaded bow,,,same principle)
Caster 2 with a rod with some more flex/give in ,can readily load the rod ,in other words, pull the string of the bow back all the way.It may need a slower action which will probably suit the less powerfull caster,but with the aid of the rod,now fully loaded he can also belt the lead out to 130 meters.
So bear in mind if somebody advises you to a rod for casting,he had better know your physical capabilities very intimately or else, it is a rod which he has found suitable for his physique ,and not necessarily yours.
Truth is that you can also grow in and out of a rod ,for example you may ,if you were a novice(example) not be able to bend/load a specific rod ,but as you practice and get stronger over time you may even find the rod too floppy for you ,because now with added strength and tecnique,you can load the rod properly.
The perfect position or rather position in motion for any rod to cast to it's potential would be with all the bend loaded out of it,in other words your final push pull action will be against something solid.Now imagine what happens to the rod if you punch with the right hand(for righthanded casters) and it is not loaded properly.All that will happen is that there where your right hand pushes,the rod will give ,why, because it can ,it wasnt fully loaded.The consequence of this is an unwanted jerk in the rod ,which can lead to all sorts of problems on your reel during the ensuing cast.
Seeking advise on Sealine is the right way to go ,they will give you great advice regarding quality of guides,grips etc,but when all is said and done you, and you alone need to go and cast these different rods to find the one that suits your abilities.
It may not even be the most expensive one ,but it is irrelevant.Buy what is right for you ,and not what is the flavour of the day.