I can’t answer you directly on HBG’s 109s… but I have had similar problems with some planes from HBG in the past (crooked tails/what-not).
This may or may-not be a help to you, but if you’re looking for a new/different type of German fighter than the default Me-109, try ordering the FW-190 German fighters from the 1941 game… they are OOB units from 1941, well made and you won’t have any of the warping problems.
I combined units from 1941 and 1942SE and then ordered extra from HBG to fill my nation bins, and I enjoy having both 109s and 190s for Germany (though I’ve not used HBG’s 109s).