The OS LA-40 engine comes pre-mounted. However, it is not directly bolted to the engine mount. Instead, it is "clamped" on each side by two pieces of metal that ARE bolted to the engine mount. I have no idea why it's mounted this way. But, I'm wondering if anyone has had any problems with this. Is the engine actually mounted securely enough that I shouldn't worry about it? Or, should I remove the "clamp" setup, and drill new holes to bolt the engine directly to the engine mount?

Incidentally, so far I'm impressed with the quality of the construction and installations on this ARF. I hope it flies as well as it looks.