Baffles are baffling. Sometimes. This is work that I do not enjoy – it is too persnickety. The cowl has to come on and off way too many times, and its just boring tedious work. There is a paper clip trick to help figure out where to trim the baffles, and that helps. Regardless, this takes awhile.
Additionally, the angle valve clearances inside the cowl are VERY tight. I have to pay special care to ensure that the engine and baffles will not hit the cowl, while also maintaining good seal.