Everything I've got that can hover from a Sudokhoi turning a 12x3.75 to an extra 260 turning a 27x10 would probably feel to you like it "doesn't have enough rudder authority when hovering". My Sudokhoi hovers easily with the 12" prop. I don't feel any need to go buy a 4 stroker that'll spin a 14" prop.

What other planes have you tried to hover? Do they feel like they have enough rudder authority for you? Two things to remember when hovering. 1) You're balancing the plane. Once it falls off very much at all it doesn't matter how much rudder or elevator you have it'll need a kick in the tail to right it.
2) You can quadruple your surface authority by flooring it while providing your rudder or elevator input.

The trick to hovering is to learn how to keep the plane balanced. If you see it start falling off then try and catch it, you will be too slow. If it always falls off to the right, know this. Keep some left rudder in it all the time until you get it to start falling off to the left. Then decrease the rudder input. Repeat.

Oh, and I don't find the CG makes diddly for difference when hovering. Put a weight on the end of a stick and balance the stick on your finger. If the weight's 20" away or 20.5, it's still damn hard to balance.