Scott, It sounds like you have done well thus far, but are still pushing to improve. I would guess that you will soon be an expert if you're not there yet. Things to consider:

Are you able to take-off and land from either direction? It's surprising how many have this problem. Cross wind techniques for both?

Do the rolls both directions?

Use the rudder all the time? Most well trimmed airplanes need a touch of rudder for loops, right for inside, left for outside. Loops take elevator and throttle management as well.

Do you coordinate the rudder in the turns, both upright and inverted.

The list could go on and on, but you get the idea. There is alway something new to learn and practice.

Oh yeah, tapered winged airplanes are not as forgiving as constant chord. They like to snap at high angles of attack if pushed too hard with the elevator. They have alway been my weakness.