Off2fly,
There are a many reasons why someones motor does not run as advertised, I find that most are self inflicted and I include my self in that bunch. Some one told me along time ago "For those of you who read the directions this product works extremely well" and I find that sound advice.

Many of the rough running, kickback, popping and sagging motors were cured with the new ignition but that does not cure those who refuse to baffle their motors or refuse to defer to the 3W manual or refuse to listen to Gerhard or Bobby, refuse to run the right mix of oil or watch their head temp. Its all relative.

So dont give up on 3W they are mighty strong motors for the money

Good Luck

JDS