I scrounged various parts to make a suspension system for my late 60's Camco kit out of the Pearl ISS system. I did have to buy a pair of tom brackets, though.
The idea was to leave all existing hardware intact, and switching from the original Camco mounting to this suspension system can be done in a matter of seconds.
I had used the ISS system on a Club date kit several years ago and it did add resonance.........and got rid of the characteristic "doink" you often get with Ludwig toms mounted on the factory L-arm brackets.