There is no float adjustment. If you are pulling out too easily you either need to:
a. adjust the release tension
b. adjust the angle of your cleats
c. replace your cleats
Are you using the 55/56 (silver or gold) cleats or the 51 (black) cleats?
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"Let us hope our weapons are never needed --but do not forget what the common people knew when they demanded the Bill of Rights: An armed citizenry is the first defense, the best defense, and the final defense against tyranny. If guns are outlawed, only the government will have guns. Only the police, the secret police, the military, the hired servants of our rulers. Only the government -- and a few outlaws. I intend to be among the outlaws" - Edward Abbey