SF1, SF2, SG2, SF2 is not a valid depth chart, so not an option.
I haven't had many (any) blowouts so far, but going 4 deep at every position has resulted in a relatively even distribution of minutes for me.
I may be wrong, since I'm still new to this, but I was under the impression that the "out-of-position" penalty doesn't kick in until a player is 2 or more positions away from his "natural" position. Is that not correct?