Joe you beat me to it and I agree, it sounds like a thrust issue.

BigNed, I remember a thread that you started some time ago about spoilerons (I think that was you). "You Can't Do Harriers", or something to that nature. I'm sorry to hear about your loss with that plane. It's usually not the money or even the build time that one loses, but the time that you spent getting familliar with and time spent on set-up, that hurts (sounds like Hallmark).

If the problem in hover that you mention continues predominately to the left, you may try to add a bit of right thrust to your motor mount, between mount and firewall.
The way that I can tell if my thrustline is true, is to enter a vertical ascend from level flight, at about 1/3 power and once the plane is vertical, add full power, semi-abruptly.
Watch closely, without any corrections on your part, to make sure that the aircraft tracks perfectly vertical. Repeat this several times to make 100% sure that aircraft tracks perfectly vertical and make adjustments until it does. Also, try Joe's prop suggestion. I would even venture to suggest an APC 14x4W. Heck, try both.

Another solution to tame an aircraft in a hover/TR, is to add yaw coupling for level rudder turn. Now I know that the principles don't seem to apply and may-a-pilot frown on surface coupling, however, I've actually tamed several aircraft in Hi-Alfalfa flight by applying yaw coupling.

Try the thrust thing first, 'cause it sounds like a sure fix, or will at least get you in the park, If you're this close to a controlled hover any little corrective thing you do to the plane will indeed help you.

And try to avoid breaking your head while doing this in windy conditions. That's later. When the wind starts to kick-up, stop trying and just fly around in a relaing manner.