I am trying to determine if the converter is locking/unlocking properly in my 700R4. In what gears should the converter be locked/unlocked ??? Cruising at about 65 in OD if I depress the accelerator a little bit it feels like there is a slight downshift, but it is still in OD. I also have felt something similiar in 3rd. Is the slight feeling of a downshift the converter locking up ??? Should the converter be locked in Drive all the time or some of the time ??? Also if I apply the brakes lightly in OD, I think I can hear the RPMS go up slightly, but I dont have a tach and am not sure that the RPMs have gone up.