A little difficult to clip in place, but works like a charm once they are in.
Absolutely love the needles. Tight rounds are tight and last hours without clogging or having ink dry in the cartridge. Mags are awesome as well. The only request I have would be that the cartridges could be black instead of purple (Purely my own preference)
Very good & consistent. But the best I've ever used but still very good. I have no problem using these.