candukid You need to really secure the head on a very solid surface.
😉This is what I bought the magnets for, that we discussed in another thread. Made a block and have 2 magnets that hold the heads. Not bad, not perfect. I may revisit the setup. I do have a small arbor press that I might fool around with, but don't think the clearance is high enough.
Did stamp a couple. Not bad, not perfect. Practice. Need better stamps than what HB sells, but that can get pricey, like from the place John mentions.