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9.5m was the last one and 8.5m before that and various from 6m up as well over last few years.
Best riding boat I have been in lately was an Extreme 650 Gameking, and the other one I liked the ride...

in a really big following sea no thanks, in fact pretty much no thanks to most trailer boats.

My Southern was totally awesome into the weather but you had to be on your toes in a big following...

But heavy and hard riding or at least the ones I have been in are and there are better pontoon style boats IMHO and I have been in a few.
Extreme make a nice hull but not pontoon style.