Keep the landing flap LESS than 45deg, it really does'nt need much and too much makes it twitchy. The crow is not necessary but really helps set a nice AOA on landing ( about 10mm ). Also don't be afraid to push the cg forward, makes a big difference on how well the plane tracks, I am probably 5-10mm farther forward than recommended. The plane rotates fine and lands good but the flight performance is much more rock solid and still has no issue with wanting to stall fast.