If you move the ram slower, it(mine at least) won't always drop in the detents.You have to lower and raise( the first half of the sroke anyways) fairly fast and it will alway pop down. I also just keep my hand by the shelplate and sometimes wiggle it if I don't think it went. For the most part it is just learning how to move the ram to get it consistant, if you go slow one time, fast the next, it changes the timing a bit. But any time I've felt the case hitting something,I could easily feel it and stop without breaking anything. Force does nothing but break things.
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