wrote:
Howdy -

I know this topic has come up before, but we're searching for the
latest theories:
We're towing a DG-500M in a Cobra trailer, and it has a definite sway,
fortunately it usually damps fairly well. Life was worse with a strong
crosswind. We had 2 thoughts:
1. tonuge weight - are we shooting for tongue weight about 10% of the
total trailer weight?
2. Hitch height - any thoughts?

Thanks!
Rolf

Rolf,
Try a longer wheelbase vehicle to tow with such as a Suburban or a full
size extended cab p/u. Cobra trailers are balanced really well, hitch
height-trailer should look fairly level, nose high or low shouldn't
have much effect on sway. My Cobra single axle weighs 2000 lbs with
glider in it, my tongue weighs less than 100 lbs, tracks great swings
little but I pull it with a fullsize p/u.