whk and dbows have a good thread going on dodgers for the J30. I thought I'd transfer this discussion here so the subject would match the topic discussed.
whk, please do send or post your dodger pics when ready and the contact info for your supplier... I like the sound of the newer system you describe (stainless tubes and "strapless") and the price seems reasonable.
I have the newer version cockpit with combings so my measurements and application might be slightly different for the aft posts.
I like to do these kinds of things right the first time to minimize drilling and filling. It also has to be able to be disassembled quickly for racing ... a very key requirement. Thanks for your input.