Well I just bought Rascal 40, and great job Sig. It is built nice, straight and very light. I know I will probably get "Why don't you just put a 4 stroke in it!" but I have a perfectly good and nearly unused OS .46SF in the shop that I would like to use. The stock muffler hanging out the side looks pretty cheesy so I was wondering if anybody has had any luck fitting in a inverted in-cowl muffler. It is a real tight fit in the engine compartment but looks like you could get an in-cowel muffler to fit. Just wondering if anybody has done this to theirs.