okay, this isn't correct but it's how i work out my training, if you train one on one PG(one postion u'd get 100% training) if you train pg/sg you'd get 50% of the training for both postions(they get half each)
so 48 mins = 100% training if you train one postion, which mean for every 1 minute it's just over 2%, so 46 mins would be around 95% traing if you train one position, for two positions a player would get somewhere between 42-45% of training. Thats just how i work it out but everyone will disagree with my opinion.