Have an A4 with the sport wing and Dynamax fan/JMP II pipe system. Ground Handling...the A4 tends to want to wheelbarrow down the runway...if trimmed a slight amount of UP it will infact fly itself off the runway...if not then it will wheelbarrow until you rotate. If you try to fly to slow or get the nose attitude very high just after lift off then you will stall the wing...and since it is a Delta wing it will stall from the rear outboard section inward and foward...the result is a very noticable pitch up to about 60 degrees or more and no elevator effectiveness...ie. CRASH if you are not very lucky. The A4 slows down nicely once the gear is down and you should have a nice nose high landing attitude carrying some power to control the descent rate. I have brakes on mine and they work nice ...but once again if applied to much to fast, the aircraft will wheelbarrow...I would put some nylon wing skids (carl goldberg) on each wing tip to protect the fiberglass from rubbing on the runway. The weak link in the gear is the nose strut...the piano wire that connects the Robostrut to the retract will bend on just the slightest pressure...be careful. Wow the crowd with a low pass and ROLL...the roll rate is uncontionable...
Have Fun!

Scott