Personally, I don't see what all the hub-bub is about 4-strokes.

They are a little DIFFERENT than 2-strokes, but I really don't see them as "more difficult".

You will need to bump your nitro up to 15%, which will cost a little more, but they burn a lot less fuel.

And God knows they are a LOT less messy!!!

Nowadays in the few times I use a 2-stroke, I'm just grossed out by the slime they leave behind.