I know the guys with the 1058's are having problems, I though the 1056 wasn't..
Sorry i dont know squat about converters, i just tell mike what I want
My 55 doesnt lockup till late either,Ive never ran in T/H because ive never taken the time to learn the shifts.
I wouldnt expect miricales from the converter locking but maybe 3/10s I dunno.....never ran a co-pilot or Braydens thing yet and wont untill next season