SPDs have forced many people into thinking that float, tension and release angles all have to be coupled. On my Time ATACs, I have about 5 degrees of float before I hit tension and then I will release at either 13 degrees or 17 degrees depending on how I have set up my cleats. On my Speedplay Zeros, I have set up my float to be 4 degrees inboard and 6 degrees outboard. Thus I can float free for 6 degrees from baseline (10 degrees end-to-end) before I hit some tension. I probably have another couple of degrees after I hit the spring tension before I actually snap out. In both those pedals, I do not have any tension adjustment while Shimano pedal designs and clones tend to make you use tension as opposed to angle as the determining adjustment for release threshold.