After probably 20-30 sessions on the Insanity I have a few more thoughts. First off I tried a bunch of difference quad sets and it mostly felt too stiff and turns were really drawn out, even with the smallest quad set I own. It was hard to get it to pivot sharp enough to place turns the pocket. I'd end up way out on the shoulder. I had some surfs in hollow lefts as a quad and for driving down the line backside the quad felt great. I rode it as a thruster once and it felt fine but definitely slower than quad or twin+. Twin+trailer is definitely the call for me. The tail is so narrow and thin that there is no lack of hold it and the small trailer gives it a fun, free feel. Ridden it in overhead tubes and 2xOH+ powerful mush and it holds in great. In small mush the narrow tail sinks a little but with an active approach it can be made to work. Mine is PU and heavy glassed so I bet an EPS or XTR version would grovel better but it wouldn't be my first choice.