I recently purchased a Dillon Super Swage and so far am liking it very much, compared to the swaging dies from RCBS that I have been using. I reload on a Rock Chucker IV, (My first and only press) and approach in batches. Someone asked about properly aligning brass and I purchased an insert from
Here. (I have no affiliation with this company, just a satisfied customer) With the first few I tried before buying the insert, I had to adjust to find the right depth, and tried going to fast and crunched a case. I stopped and bought the insert and everything has been going well since. I've done 1500 cases the past two nights.
I have yet to come up with a spring or rubberband modification for quicker release, but like I mentioned earlier, I do things in batches so I'm happy with it as is. Oh, I also mounted to my bench to allow it to "cam over". The action to swage is pushing the lever down, away from the brass, which pushes the swager into the brass. I'm currently designing a new box to mount it to and will keep it off the bench until needed.