ORIGINAL: MercerAUST
I was looking at the manual. It is strange that it does not recommend a metal motor mount and a nylon throttle control rod set-up. The engine even includes a felt clunk and inline fuel filter to help circumvent the othercommon beginner problems.
A metal motor mount helps with cooling the hotter running gas engine - not essential, but definitely helps if the engine is cowled in the first place and is going to be hauling a typical 60 size set-up). An all metal throttle control rod can leak the high voltage electronic ignition back into the server, and hence into the RX set-up, causing server jitter or worse. A lesson all gas engine users learn sooner or later!.
Yes there are a few areas where they could improve.
A metal engine mount would be better.
A cable or nyrod would be an improvement over the music wire for the throttle.
Include the muffler manifold extension for the engine with the arf ,
Include a better grade tiller arm for the nose wheel.
Improve the mounting system for the nose wheel pant.