I can relate to this. I often have to wait until I'm out of the Cup to be able to really train my players out of position, and even then I tend to sit them for regular season matches so that I can play them 48 minutes in a scrimmage. (My PGs look funny posting up at the center position...) Creating some sort of SF training option would do two things. First, it would help us focus training on a SF without either diluting training by having to train at least 3 positions per week or forcing us to play a SF out of position. And second, it would let us put a C/PF or PG/SG at SF for a game or two to train out of position instead of doing something more extreme, like having to play a PG at C/PF to, say, train up shot blocking or rebounding.
This would also help with the shortage of SFs on the TL and the inflated prices they tend to sell at compared to the other positions right now.
So count me as a vote for SF training!
Don't ask what sort of Chunks they are, you probably don't want to know. Blowing Chunks since Season 4!