I weigh about the same as you Eric
I would give you one bit of info
I could bottom the highest weight 7's at will and had to return them
Also skip 640's would be the same and although Skip do a higher weight they are a bit prone to spring breakages
That leaves you with Pro-jump and Poweriser
The latest Powerisers have had a few problems
The main manufacturer of the Projump/Powerizer/ect is in China (used to be called flying locust I think ) so you may be able to order direct from them
Jason