Just got an EX01 that has some vertical play. Granted, it takes some pressure to move it, but it's still there. I have no reason to believe the knife is unsafe but I think at this price point any amount of play is unacceptable. Just wanted to get opinions on how much play is too much and at what price point do you expect absolute solid lockup? Side to side play I can live with or just tighten the pivot, but vertical play almost brings out the OCD in me.