Okay, well...I guess I'll use a 2.75" spinner (which I really didn't want to use, but it's better than screwing up a $200+ plane or a $250+ engine

). I'll throw my MAS 14" prop on it. I bought a Tru-Turn 2.25" BigCut spinner, that really refuses to clamp down around the MAS 14" prop [:@] and I'd really prefer not to cut it or fly the plane with such a huge spinner. It's the Fliton Edge Freestyle, so it has no yellow anywhere on it and it'll look hideous with a huge, yellow spinner[:@].
After the first 40 minutes, can I switch off to the 15x4W immediately?