Any time the outcome of a vote is overdetermined there is room for manipulation of one's voting record. I'm not sure what to think about, in particular, the practice of voting for cloture and against the bill. In principle, one could consistently hold the position that denying cloture should be reserved for cases of strong rejection (or similar). I am not convinced "use every procedural opportunity to push your agenda, regardless of anything else" is what we want (though I'm not entirely convinced that it isn't, either).