The fix is add a shim under the back side of the retrack mount where it mounts to the wing this will rake the gear forward more without causing any problems with the function of the retrack going up and down I had the same problem with my spit I tried it and it works very good
good luck and hey check out the hanger 9 spitfire build post under the warbirds forum here on this site good luck and fly safe
flyerp39 .