Actually... the TT Pro does not make the Avstar need a faster landing speed.... using the wrong prop may makethe plane retain flying speed even with the engine at idle and cause you to continuously overshoot the runway.

Flaps won't really help much on the Avistar. More work than they are worth. Flaperons would be a VERY bad idea if you are having problems with it needing to land fast.... you'd just make the aircraft easier to stall on final, and the stall would be more violent. (more likely to result in a spin... very bad on final approach.)

If you are using a 10X7 (which is commonly recommended for a .46 on the Avistar... try a 11X5 or even a 12 X 4. you will be suprized (and happy) with the result I am sure.

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Runway length required for the Avistar is abot 150 ft and then you need about 18 ft for every 10 ft of climb to clear obsticals. You can (with practice) do a nose-high power-on descent for short field landings where you chop power just as the wheels touch and have a steeper descent angle than the models's normal climb angle.

If you are not capable of that type descent and the glide slope (with the lower pitch propeller) won't let you easilly make the landings, you need to fly somewhere else while you build your skills. Always match your flying site to the aircraft and your skill level.