On a TT the tongue needs to have enough weight to avoid sway, and even if you get it to look level while parked, the transient forces when you hit a dip at 55mph may ruin your leaf springs on the rear axle. I would not recommend going without a WDH for sure! Plus if your steer axle is too light, the steering will feel very "watery" like that feeling on a bike when your tires are too low. more