Hiya
Moggy, my friend has a 6.5m MAKO semi-rigid monohull and that boat runs like a dream. Doesn't 'stamp' is is VERY, VERY, VERY dry. We fish and spearfish with that boat 40nm offshore regularly. She is powered by 2x50hp 4 stroke yamaha's and is incredabily light on fuel.
The 33' Buttcat is basically the same boat as the 30', just 3' longer. Its the same mould, just for the 30', the mould is shortened. The next size up is the 36', which is a completely new design.
Marine and Coastal Management has set the rules that any NEW vessel entering the commercial tuna fishing industry needs to be at least 10m in length. Why they choose 10m, nobody knows. This exclude all the monohulls here in the Cape, as Cape Craft only build a 28'. (they now build a 35'+ monohull, but its a displacement hull, so pretty much competes with the other deckboats, like the tulley's, sachals, etc,etc) Some claim its to keep the snoek fisherman from applying for a tuna right and then catching snoek with that licence. Others claim that the 28' Cape Craft is not deemed a suitable vessels, as they remove much of the floatation when they make the fish box's, which run from above the deck, all the way to the bottom of the hull. A few seasons back, we almost had 3 of them sink, in a heavy NW storm at sea. One of the boats sent out a mayday, as his boat was filled with water, up to the gunwhales!!
So, unfortunately, we do have to do the over 9m skippers ticket, which isn't difficult, just time consuming, with the first aid course, fire fighting course, radio operators coure (which you should have anyways!!) and survival at sea course. The exam and practical wasn't too bad.
Boat size's have increased considerabily on the whole. A few years back, all the commercial guys were running 6 man boats with 2x85hp motors. These would be 18' class billfish and cape crafts. These were considered to be the BIG boys!! Today, if you don't run AT LEAST a 25' cape Craft, with 10 men on board, powered by 2x200's, you'll not be financially viable.
Stonechamp, the 430 witblitz is a very small boat. I had one for many years and its a LOVELY small boat. The emphasis is SMALL. If you keep that in mind, she's actually a good buy. Light on fuel, tows very easily with even a 1600cc car and handles the rough stuff inshore ok-ish. She does bang quite a bit, like any other boat in that class and is wet too, also like pretty much most boats in that class. It is how-ever too small to take 40nm offshore.