Sitting scheduled starters in H2H fantasy baseball

[dkgojackets]

I am in a 14 team H2H yahoo league, scoring in 10 categories (W/SV/K/ERA/WHIP) for pitchers. I was wondering about your general opinion on keeping your SP who are scheduled to start on the bench so as not to risk a blow up causing your ERA/WHIP to skyrocket. I nkow this should only be done towards the end of the week when you have a good idea of where you stand, so I'll throw out my situation.

I am definitely going to have the most wins unless something crazy happens (like all 4 of his RP blow the save and get the win). Right now I am at a 1.98 ERA and .93 WHIP with 63.2 total IP. The other guy is 3.40/1.06 (53 IP). I have five more strikeouts as of now. He starts Ervin Santana tomorrow, and I can start Capuano (@NYM) and Javier Vazquez (KC). I don't think he's catching me on ERA/WHIP, but might get more Ks if I don't play my two guys. I didn't start Looper tonight at SD.

Thoughts? Pitch both and go for all 3, or play it safe and take two? I'm in first place by 4.5 games, and this matchup is against the second place guy (currently up 8-2 overall).