I did not put any of the decals on mine. As you said... the manual is vague and I personally don't think the rivet decals are worth the effort.

I installed a smoke unit a few weeks ago. It is a TME that I mounted to a 1/8 ply board with a 4 oz tank and battery. The assembly is mounted on the CG and is sandwiched between the electronics and lower wing with very little room to spare. I'm running an OS 120 with 30% nitro and it makes smoke!!! The 4 oz tank will last about 2 minutes and over a 10 minute flight it will make plenty of smoke.

I do not have an accurate scale so I'm not sure how much it weighs. I did make one mistake.... the tube to the clunk in the tank was cut close and I neglected to compensate for elongation. The tube was about 1/4" longer and was hanging up in the tank.

Ill post some photos of this setup soon.

Ross 3951