I've got a +200% increase in hard practice match before, that one also had 200% gain in a no-overtime match without getting the MOM at one time.
Fast trainer with high pitch time and low level of training can jack up his progress factor to really ridiculous levels, but his form will suffer.
Sorry but I don't bellive you, there is no way a scout ranking player will gain that, field time or not.
If you indeed have this player please share printscreans proving 200+ gains, because I would very much like to se that
__________________________________________________ Groundhog Day visiting level - 58 -
considering quitting, since nothing is improved for veterans ... nothing and pay to win has become to dominante