422's for towing?

so we got the tickets for the Chip for next year (75th BABY!!!), and we'll be taking the 03' Heritage Springer after I get the motor work done this winter. Have heard good things about the 422's, and will be getting the set with the RAP on 'em.

Anyone do any towing with these?

we're taking a small trailer, and was wondering if these would be good to go. Tongue weight will be about 40lbs for the trailer. I go about 270, and my wife goes about 135 (ALSO according to tongue weight :rollin)

so I'm hoping to avoid the sticker shock of air shocks and just use the 422's