HogFlyer.. Thanks.. It is a great flying plane.. I made a few mods when I rebuilt it this summer.. You might notice that the taper on the ailerons is reversed. they are now 1" wider then stock the the middle of the wing.

2nd mod was a bigger rudder with counter balance.. 3rd was a larger elevator with counter balance. On full throws it'll snap out with just full elevator. It rolls right on it's axis, tight spins upright and inverted.. Great inverted and upright flat spins with easy recovery.
Knife edge has some wicked roll coupling but it can be mixed out.. No pitch coupling and it's got enough rudder that it'll pull up on a KE. I still have the CG forward a bit. It should get better when I move it back to the recommended location..
I also setup Flaperons.. It'll slow down to a crawl with the flaps out and it's still rock solid.. It's been a trike landing gear up until last year.. The only reason for the change was to get some weight off the nose and loose a little drag.
Not necessary unless you want a speed demon. Honestly there are better planes if you feel the need for speed. With that big fat wing it's not breaking any speed records.

I forgot to mention the first time I took the Stik out back in the 80's.. I'd set up the ailerons for every bit of throw I could get. Now at the time all I'd flown was a Fledgling and a Falcon 56.. The Stik was a whole new beast..

It barely survived the first flight.. It rolled so darn quick and stuck where you left it plus with a .45 FSR (the same one still on it) it was a screamer.
I had it up for about 2 wild minutes barley under control when I managed to get it lined up on the runway somehow.. I forced it down hot, chopped the throttle about 2 seconds before the wheels hit, clipped the JZ Zinger prop hard enough to shred it.
Still it landed and was ready to go again that day.. We took half the throw out and it was a nice tame beasty.

In my opinion (whatever that is worth) the Stick makes a good 3rd plane or a 2nd if you want to push it but be careful.
A great 2nd is a semi profile shoulder wing like a Falcon III or an Avistar. You could use the .55 but don't use full throttle till you get a good handle on it..
When you think you got it nailed move the CG back and see what it'll do. You could do this with the Stik too but keep the throws tame at first and get comfortable before kicking it up a notch.

I've had an Avistar and they are a great flying plane.. Lots of fun with the CG moved back and a hot motor up front.