I dont like the 7 start limit restriction. It makes the 65 IP limit almost redundant.
Suppose each team uses up 7 start per week and the average start is 6 innings. Then, there are 65 - 7 * 6 = 23 IP for RPs.
Each team usually carried 6 RPs, that's 23 / 6 = 4 IP per RP. Extrapolate this to a whole season, thats 4IP * 24 weeks = 96 IP for a RP which almost never happens.