I have not pulled TT40's with the small Offshore boards. Some here has said it can be done with modifications to the boards but I know how Jet30's pull back on the inline boards. If you are leaning towards a jet style I would look at the 30 size for the little boards to be safe. You really need both (jet style and inline/snap weights or tadpoles) some days the fish want the lure dropping when turning/pausing/or slowing from a wave. The jet style divers are buoyant so it won't drop like a rock. Personally I take the buoyancy of the jet style divers over lead to keep your lures out of the mud any day!

Having said that...I have set of 8 Jet30's all black I'll sell you. I switched over to all True Trips!