For purposes of context my leagues that use the Super Flex have the following lineup/scoring requirements.
Lineup: 1 QB, 2 RB, 3 WR, 1 TE, 1 D, 1 K, 1 Super Flex (any position)
Scoring: Super high performance -- TD passes are 4 pts, TDs scored are 6 pts. WR's/TE's get 1 Point per 1st Down Reception, RB's get 0 pts per reception, but get bonus pts for: 1 pt for 20+ yard run, 2 pts for 40+ yard runs, up to 4 bonus pts for rush avg, WR & QBs also get bonus pts for long plays (> 40 yards), QBs also get up to 4 bonus pts for comp %. Yardage is 1 pt per 10 yards rec/rush and 1 pt per 25 yards passing.
I don't believe in a specific drafting formula. However getting 2 good QBs early is certainly a very viable strategy. So is gettting 2 quality RBs early and also getting 2 "Top 10" QBs a little later. Getting a strong stable of WR's in the PPR format ( ~ 70% of WR receptions are 1st down receptions). Top defenses can score 25-35 pts in a given week, so if you can grab 2 of the Top 5 Defenses (granted later in the draft) you can also be very viable (recognizing that there is more variability in Defenses.
Last year in this league we had 5 QBs get drafted in the first 2 rounds, including 2 teams that took 2 QBs with their 1st 2 picks. Still no assurances. One team took Palmer/Brady and was very strong, but did not win it all. The other team took Manning/Bulger and was sub-500.