Yup... the .46 AX starts right out of the box with only minor tuning needed.

The LA, well that bleed valve can be a nightmare... I have a .46 that runs too rich on the low end and I've already drilled the bleed hole as much as I'm going to...

I simply can't fully tune this engine, but that's better than ruining it altogether.

My .46LA is doing a wonderful job in a .30 sized Extra 300 plane. It was anemic in my .40 Spacewalker II.

The AX is definitely a good "beginners" engine, in that you will spend very little time hacking away at getting it right, yet it will still produce plenty of power.