RCBS Automatic Priming Tool handle...

[Valley-Shooter]

I assume (?) you are referring to the bench mounted unit... I have/use three of them -- one each dedicated for a particular (e.g., LP, SP, Military) primer. Super guide/gunsmith/educator Darrel Holland has upgraded/modified the basic RCBS unit in soooo many ways -- not the least of which is a much more comfortable handle which might alleviate your "complaint" with the stock RCBS unit. Further, he has a spring to return handle up; and, a gizmo to maximize your primer seating -- for uniformity -- as well. He purveys a gauge to measure primer seated depth to complement the tool. (I asked, and my dad made one of his design for me using a dial indicator, so I needed not this accessory). Here's a photo of Mr. Holland's awesome (imho) innovation:Attachment 292830 What one might do, too, is just buy parts (e.g., the handle-raising spring) separately if you ring his place of business and inquire.
geo

https://secure.wf-api.com/site11615-...lete-unit.html

You can buy it here .

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[Walter Laich]

I put a piece of sq tubing over the handle and topped it off with a wooden ball from Hobby Lobby

makes it much easier to 'feel' the primer being set

like others mounted it on a board and C-clamp it to the table when needed.

[BigGee]

Finished job - I smoothed some burrs on the main body around the handle pivot and it's running smoothly. I primed 500 cases (Same amount as I primed originally) all went well... no blisters !
[ATTACH=CONFIG]295974

P.S. First time at posting an image.

[M-Tecs]

I don`t see any of the issues you guys are having as a problem.
Like roysha, I have tried ever priming device out there and like this one best.
I don`t see pushing on the handle hard enough to cause blisters with extended use.
I don`t have a clue as to how many tens of thousands of primers I have seated without a problem.
Mounting it in the edge of the bench solves the handle problem.

Same for me. I have had at least one since the mid 70's. I know I have primed of 50K with mine. Until I got my Dillons these were my favorite priming tool and I have tried a bunch. Never thought of mounting it other than on the edge of the bench. Other than my scales and my Giraud Powered Case Trimmer everything I have hangs over the edge.