Im slowly switching all my stuff over to Fomeco's. I have not put any in my F15 yet, but plan to. I have 3 4400 packs with the super reliaswitch in my 41% plane, and 3 2200's with the normal regulators in my 33% plane, and even put one 2200 with a normal reg. in my heli. They are very nice packs, have not had any problems with them, and love getting 15+ flights out of a plane with 14 8611's in it!

Call Kurt up over there, he will explain it all out, great guy to talk to!