I'm actually kind of interested in hearing ride reviews of the b1 and the sea doo with the triple. Compared to eachother and compared to the twins they normally come with. I'm not a couch guy and have very little time on either of those hulls but they seem like those two would be what I'd be looking at if I got a couch. And triples are cool.
I've had 21 Seadoo's, X4's and GSX(L)'s being the only relevant fun couches.. HX's & B1 not really a couch to me it's hard to relate them.
Anyone, and I mean anyone so long as they can physically can climb up on it can ride a Seadoo. A stock showroom floor B1 has given over confident grown ass men public embarrassment since it's inception. They're honestly to me harder to board than a standup. It's a null issue for me at this point I'll ride a b1 all day and never fall off or a standup for that matter, but it's a balance and climb to get on... plus no storage. They ride opposite of eachother B1's lean in, X4's kinda steer flat.
X4 wise I've had every stock configuration 717 & 787, limited 787, 951 swap running 65+, and this.
Stock I like 717 X4's best, they sit further back and don't have a heavy pipe hanging forward, no trickery to make it's power like raves etc, like the 787 (and 951) and are just overall lighter.
I really enjoyed the limited 787 with ecwi and a swirly prop before it melted down from a piece of straw, but the headache wasn't worth it.
The 951 setup was just too much, the ski just gets too out of control in its fun range, probably would have liked it better with a more fun impeller, was fast but lame bottom/mid with a concord. Plus looming fear of 951 unreliability constantly.
The Kawi triple is every bit as fun as the limited 787 was, but slightly better, no dependency on rare irreplaceable parts, no dependency on hardjetting & ECWI which has some bit of lag, but the triple is just instant torque & power. And so far for me the 1100 has been substantially more reliable. Weight bias Is much more like the 717. It's everything I love about the stock 717 ski's but 10mph faster and better, and I haven't even begun to try making power out of that 1100.
GS/X/L are pretty much just X4's fatter brother. Oddly I haven't had the honor of trying a 717 GS or GSI yet, but 951 they're monsters and much more ridable at high speed, 787 GSX may be the best allrounder 2stroke couch period.
The triple SPX is endgame X4 for me, not sure I'd have it any other way. If it sold and I had to have it again, I'd build a GSI the same way, primarily cause I only ride this ski on day's I've determined I'm too exhausted to be on a pole ski, GS hull is more comfy with more storage and substantially larger fuel tank.
The B1
The raddudes setup has the motor very far back. It doesn't porpoise for me really at all like alot of people run into. The weight is there compared to stock for sure, it's still tossable, it'll still do controlled spins. But what's weird about it is how much more sticky it is to the water. I see why people race them, the added weight central really hooks them up, just doesn't jump as well static trim as it did with the 701, but easily rectified
If you want a fun runabout couch experience grab a 717 X4 (95 XP or 96 SPX) you will love it and they are CHEAP, wife/girlfriend won't whine too much when you toss them the key to it either