Originally Posted by rootsnatty
Did you try putting something smooth over your shoulder to cut down on friction? I know Bib recommends a cut up milk jug over the shoulder for the rope to glide over easier. That might mitigate your lost leverage just a bit.
Attach the rope to one of those pads you get on duffel bag/hold all straps and then attach another rope to the other end to attach the weights. The rope attachments could prove uncomfortable, flat rope would probably work better, and the pad/rope attachement would have to be adjustable (like the adjustments you get on goggles, maybe?) This might be more comfortable, you may have to swap shoulders/adjust it ever so often, would make it easier to conceal under a shirt or alike.
Could even attach curtain weights to the other rope to aid in concealing your hang (May have to continue the rope into the trousers to better hide them)
Actually, come to think of it, would a pad that large mitigate the effect of the weight on your tackle?
You could place the rope through the pad, then have it lead to your trouser pocket so you could pull it throughout the day.