Hey Blackhawk,
I think these clamps could be worth to be considered:
However their T-Track is not the same size as the one on Onefinity’s QCW Frame.
I use these clamps together with Veritas Wonder Dog & Wonder Pups :
At the lowest projection, only 5/8" of the dog head is above the bench. The swivel handle lets you apply ample clamping pressure in any position. The dog is drilled and tapped at a 3° angle to ensure that work is held tight to the bench.
…and with planing stops.
Veritas has interesting clamping products to be found under accessories for their worksurface and under accessories for workbenches. Their worksurfaces have 3/4" dog holes and T-Tracks at the edges. However their T-Track is not the same size as the one on Onefinity’s QCW Frame.