I was loading some 9mm range ammo the other day and ended up having several significant issues.
One, after loading 300 rounds I ended up with a quarter sized blister in the center of my palm from pushing on the stock reloading machine handle seating primers.
Two, for the first time ever in close to 50 years of reloading, I had fired primers stick on the decapping pin on the RCBS carbide resizing/decapping die.

Using a progressive reloader, the sticking primers on the decapping pin is a big deal and screws up production.

I ended up buying a Dillon carbide resizing/decapping die as it has a built in spring washer setup that "snaps" the decapping pin back into the die and "flicks" the spent primer off the pin.

The blister on the hand issue was somewhat more difficult to address. I've used an RCBS Piggyback 2 reloader for 30 years.
It is a progressive conversion kit that goes on top of an RCBS Rock Chucker single stage press.
I've used it long enough I don't feel like learning the idiosyncrasies of a new system.

I took the OEM press handle off the machine and modified it into a roller handle. The "donor" for the roller handle is an SK 1/2" drive deep chrome socket.
Oxy-Acetylene heat and a couple bends in the handle.
A section of 1/2" X 13 TPI redi-rod and some hardware and it should be perfect now!

IMG_20240110_174714244_HDR by cee_Kamp 32ACP, on Flickr

IMG_20240110_174706792_HDR by cee_Kamp 32ACP, on Flickr

IMG_20240110_174721357_HDR by cee_Kamp 32ACP, on Flickr

A creative solution Cee. That handle resembles the $60.00 roller handle that I purchased and put on my Dillon press. Betting you have almost no cost in your design.

Also, on the Dillon decaping die, you may still experience some primers drawing back up. If you do take the decamping pin out and file the tip so that it is almost a point, leaving it slightly angled on one side. I did this on all of my Dillon decamping pins and it eliminated 99,99% of those occasional primers that still wanted to stick to the decamping pin.

Looks very nice!