Oh, yes big difference. Even a level 5 can make a big difference over a level 4 in the long run. Coach parrot calculates a player of mine to reach his training goal (of a 79 week regime) 5 weeks faster...that's more than a month saved. Imagine a level 7 and how much it would save. I think this is very useful for those who want to build a strong NT player, and to make it sweeter, a home drafted one :D One of my countrymen has a world renowned trainer and his trainees have recently been the best players in our U21, which will indirectly help our NT plans one day.