Which Tom's arms are you considering, the rectangular ones (like the All-4-Fun ones of days past) or the newer tubular versions more similar to the Duff/CAGE units? I run CAGE arms on mine and for what you're doing, they're probably what I would choose since they're half the cost of the Solo radius arms. If you think you might do more go-fast stuff, then the added cost of the Solo could be worth it. I haven't seen many Duff/CAGE/TOM tubular arm failures, but they have happened...I'd hate to see something like that fail at speed.