I have run both the 1055 and the precision. I got rid of the 1055 for the sled puller. The sled puller will stall higher but seems to be hit and miss on the lockups. Never had that issue with the 1055. I would look into the 1053 also from suncoast as its looser that the 1055.
I really like the precision and it does what I want. I think suncoast makes a better converter but their customer service and price of repairs suck ass! These loose converters will have to be refreshed often and when it costs 400.00 at suncoast compared to 150.00 at precision it makes the choice a little easier.