Hi,I too just move to gas after few years on glow,from this transition what I have found is nothing much diffrent beside the equipment that we use is bigger,stronger and a little more expensive.If we are talking about setup basically is the same.But what I really found out is the balancing of prop,if we take a 40. to 120. plane during my glow time,what I always do is but it from the shelf and fit it to the motor and fly but with gas swinging up to 24 inch prop, if the prop is not balance besides the vibration you will notice the engine won't give out alot of power and the mounting will actually crack which is metal.Then we have to learn to mix our own oil.Tuning the engine is basically the same as 2 stroke glow but the diffrence is the low end will always effect the high end where as inn glow it doesn't.If you buy a gas engine the manual actually give you enough information on the motor and how to use it.

For me its is still a learning curve interms of flying this big bird,I still have problem landing this big bird due to the size when is approaching for landing it makes alot of diffrent.Its a matter of getting use to actually.Lastly all I can say its cheap to run really worth the money.Enjoy