Last year I was in 12 CBS leagues plus my local keeper league.
Results with this strat:
1 Double Diamond - 2nd (damn)
3 Diamonds - won 2, 4th in the 3rd
4 Platinums - won 2 also, 3rd and 5th
4 Golds - won 1, 2nd, 7th, 9th (got crazy with the cheap leagues trying out stuff)
Oh and I end up 5th in 14 team keeper, but I went for a lot of young guys, building, didnt expect to win.
So of the 12 CBS leagues with the little saves strat
5 wins (and almost hit the big boy) outta 12 (41%) but with golds being experimental, I feel good that I can hit well over 50% which equates to positive winnings.