Update: I bought Squires at 50% off from evo.com at the end of last season and had them mounted to my Celebrities. I was happy because the Squires are nice and light, and they seemed to work fine for me on the Gypsies. They are definitely hard to get into - even after all snow is cleared, I stomp in and they often only engage half way, so that the boot is attached but I can see the brake wiggle when I push my heel down. Depending on the situation, I can either stomp it in fully or might have to release and start again. And sometimes, it works just fine. Argh! The shop that mounted my bindings says they are correctly mounted and that the heel plate on my boot should be replaced. I took my boots back to the fitters and they were willing to sell me replacements, but said they were only about half worn which in theory shouldn't be a problem, but Squires are known for exactly this type of misbehavior. He said that the new ones are supposed to be better, but it's an ongoing problem.
Questions for those working in ski shops:
1) If I click in partly, then stomp down and click in all the way - can I trust that? Is it safe? I never ski until I've verified that pushing my heel doesn't cause the brakes to wiggle.
2) Even though my heels are only half worn, will replacing them help? I already have the parts, and they weren't very expensive. The boot guy said the sole and toe are just fine - just the heel is worn. Okay, I'm sort of talking myself into going ahead and replacing them - is there any downside to this, besides spending $17 a bit early?