Took a 21t youth yesterday, q41 (4*) believing he d train helka fast. Comes out he s an average if not even below avg with 100-120 gain on max training. Luckily i sold it and went for double his price (13m). Expect more from a 7,3 m valued youth, but 8 m ones i took from auto gen trained 130-170 being 5* already.
On the op side, depends also on when you buy them in terms of performances. Any player arrivi g mid-season will 85% of cases perform poorly being from scouts or tl.