John, in a past thread I noted that you allowed me to use muffler pressure in .15. No great advantage, but then I does make it easier for me to get reliable slow speed runs using muffler pressure. As all my Carrier activity is geared to be at or near the bottom of the entries, muffler pressure suits me just right.
Joe
PS In he NW we have NW .15 Carrier, but no mention of the plane having to be a profile. I tried several years ago to amend our rules to read "Profile" aircraft, but got voted down. the rule change failed because ,and I do take liberty to mention what was said..." Nobody uses a full bodied .15 Carrier now, and I is unlikely anyone is going to in the future".