I test flew my Tango today. OS .55AX, 12-4 APC, 10% Omega castor blend, JR 9303, PCM receiver, all digital servos (except throttle). I am trying some new Bluebird, low profile, digitals and were reasonably priced locally. They seem to work OK.

I normally set my JR 9303 for 3 flight modes: 0=low rates with flaperons, 1=high rates on all 3 controls, 2=high rates with landing spoilers. High rates are 45 degrees travel.

Take off was excellent. We a hard surface Navy runway on weekends. The tail came up quickly and it tracks straight. Lifts off pretty quickly. It has a really thick wing so lift isn't any problem.

-In the air, it flies like a Stick. It didn't seem very sensitive, but I use 75% exponential on ailerons and 50% on the other 2 so mine it pretty soft around the center.
-Rolls are pretty fast. I have flown faster, but not much.
-Loops are tight on low rate with flaperons. On high rate, full back stick causes a slow snap out that makes the loop look like an Immelmann. It's not out of control, just stalling.
-Full rudder on high rate causes a fairly tight roll with a little pitch down so when you complete the roll, you are in a slight dive. I had not expected a pitch down with this plane. In the future, I'll add lower end plates to kill the roll and mix out the pitch. I'll let you know how that comes out.
-It does all kinds of spins. Upright flat spins are good, but you can get in too much opposite aileron and kick the plane out. Inverted flat spins are harder. Other types of spins are very fast.
-Landings are easy. You can control the descent with a click or two of power. I tried both with and without spoilers and both are OK. We had a little wing come up, maybe 10 mph. I was able to walk it down with power easily.

The tail section was just bolted on and after 2 flights it is still tight. I'll keep an eye on it.

One thing, I did replace the aluminum gear with a DuBro fiberglass gear, same wheels.

Bottom line: It's a fun little airplane. No bad habits really. Easy to fly and does a lot of stuff. The wife got me this combo (Tango & OS 55) for Christmas, so I can truthfully tell her it was a great flying present.