We have an '81 E 40. In '03 I did a number of upgrades prior to an extended cruise of the US east coast. To your point, I replaced the original traveler with a Garhauer 6:1 mainsheet control [can be used 6:1 or 3:1 depending on conditions]. The sheet block runs on a track with 3:1 contol lines at each end stopped by cam cleats. Be sure to size the sheet properly. I just put on a new 7/16" [11mm] Sta-Set. It seems good, but the season is early! The 9/16" I replaced was too large for my blocks. Overall, a good set-up.