My experience with the RCM... Dies while driving down the road, wont restart until cooled off some... Wont start occasionally until cooled some... All lights indicating power is good, but wont crank... I've heard of someone having a misfire because of one as well. My guess is that the contact wasn't so poor that it couldn't complete the circuit but more of an intermitent problem with the fuel pump causing a misfire.

Experience with the CPS: Cranks all day long, makes you think it's not the CPS, Fuel pump maybe, or RCM or something, then turns out to be the CPS...

No experience with the SKREEM...