For low wing aircraft I land with full flap every time on Cessna with 40 degree barn doors I might not.
Fly the approach speed as normal unless it's really gusty in which case rule of thumb is add about half the difference between steady speed and gust speed.
I recommend crabbed approach converted to wing down with about 150 ft to go, that will quickly tell you whether you can maintain the centre line and if you can't go around and divert. Falre normally with wing down and hold wing down until the aircraft stops flying which it will more or less as soon as you run out of aileron. Maintain into wind aileron throughout the roll out.