I sold my ABLON years ago when they got so pricey that I couldn't resist the offer. Freehand works well enough. As for the cassette end, I just use masking tape, the same as I do with my snap cap cassettes. I've only got about a dozen Leica cassettes, and they don't fit the Bessa or Leica CL anyway.
I don't bother with scissors when loading cassettes. It's easy enough, and faster, to just tear the film off the bulk roll. I start the tear by putting my thumbnail against he edge. It doesn't have to be neat at the spool end. I also don't bother with a bulk film loader, Outstretched arms for measuring is close enough, and then it's all by hand. I somehow got in the habit decades ago of taping the "wrong" end to the spool so my home loads are numbered backwards. I start the session by tearing off enough lengths of masking tape and sticking them lightly to the very edge of my darkroom counter. The roll of bulk film itself is set on edge in the bottom of the can ~ easy to grab and it can't roll anywhere.
Unlike Tom I don't load dozens at a session. Usually when my film is in the wash I have enough time to reload the just emptied cassettes. A bit of masking tape and a Sharpie puts a loading date on the film containers.