How many using an A500 overdrive ?

Installed my 42rh behind the mild 318 last winter. This summer I took it on a 6000 mile road trip. Never missed a beat and really kept the rpms down especially on the interstates. even at 55mph up it was a real boon. I set it up on two switched - completely manual, easy to wire. After the first 1000 miles I found myself shifting out of OD and lock-up as I came into a stop without even really thinking about it. On an A-body it sure is easier than the mods needed for the 727 based version. You are right, the low 1st and second gear were a boost and allowed me to use higher (numerically lower) gears that I would have otherwise.