Well Darn, it’s NOT fixed, put the boat in the water (reverse, forward), idled up the canal, put wife and kid in boat, idled back down the canal (reverse, forward), ran one time around the lake at 2500-3000 rpm (maybe 20 minutes), idled up the canal, went to neutral as I got close to the shore, shifted to reverse and NO reverse! Boat slid into the shoreline…all sand so no issue there, I didn’t shift it out of fwd at all while on the lake, I don’t trust it and it is good that I didn’t. Now, at the shore, I have the cover off the drive as I hadn’t put it back on yet, so as the drive supposed to be in gear but isn’t, I check the linkage arm at the drive and it looks like it is working correctly…try to turn the shifter on the drive more by hand and it doesn’t move anymore, so it all seems good. Shift back to neutral – shut it down, raise the drive, put the shifter in fwd, and the prop is in gear (only turns one way by hand), put the shifter in reverse and the prop is in the opposite gear, put the drive down, start the boat, everything works as it should shifts to fwd and reverse. So, they changed everything in the shift group inside the drive, cones, gears, shoe…and I have the exact same problem, intermittently looses both drive directions after running in gear for a while. So what could it be, I am still thinking cables or the control box, BUT when it wasn’t working, the cables seemed to be doing their job…In the morning, I will take it out again around the lake and see if it is reproducible…basically it seems, if it goes into gear, it will stay in gear and it is smooth, no clunk or delay, , until I shift it out after “warming up” then it will not go back into gear, something getting hot, cable gets flexible against the hot motor, hard right turn into the shore line pulls the cable - but the cable still moves? I’m out of ideas, and I think the shop is at a loss also…