Here's my latest model, a Continental built from one of the late Bill Sawyer's kits. The kit itself was a lovely bit of work and a real pleasure to build. The engine is an Enya .45 (model 6001) with a lightweight Aeroproducts muffler and MA 10x7 3-blade; for fuel I'm using 5% nitro, 11.5/11.5 castor synthetic. The model ended up at about 48 oz ready to fly, which seems fairly light for the engine. Unsurprisingly it's come out a bit nose-heavy, and I've ended up adding about 1.25 oz of lead to the tail to improve the balance of the thing. I've only flown it 3 or 4 times, but after a bit of tweaking and trimming I'm really happy with it. The engine is great - plenty of power and a really nice 4/2 run.
Steve