ORIGINAL: aussiesteve

+1 on that

When I hear a Gasser out of tune, it depends on who it is as to how I react. If it is one of the more experienced guys and they seem to be having problems, I will walk over and offer some assistance. If it is a newbie without a clue, I offer assistance. If it is anyone else who seems to be trying to sort them out, I offer assistance. If they don't want assistance, I "depart" immediately and watch.

However - if it is one of the guys who always buys the cheapest he can get from the Chinese direct suppliers, and who raves about how great they are (because the specs are identical to or better than a DL on the website), then continually fiddles with everything but the right things and refuses to accept advice from anyone (apparently he knows better), then I say nothing and wait. People usually comment on the mid range burble, the constant deadsticks, the regularity of the "spark plug blew out of the head" and the high number of planes he has gone through (due to deadsticks - and a new engine in the next one). I usually offer those bystanders some advice. That advice usually involves "never fly with him and never take advice from him". While that person (and there are more than one of them at the field I fly at) is back on the ground fiddling, I usually go and give my engine a flip and go flying.

How did I learn to tune so well and how to pick the right product to begin with?

1 - Personal experience (some good, some bad)
2 - Listening to T.O.M, Ralph, Pe, etc. They really do have a very good clue but some of us just take longer than others to figure it out.