There are always going to be different views on camming over.
My view is quite the opposite to Joe Bloggs. I do not see anything detrimental to the press in camming over. There is no additional wear area by having the press do this and I can confirm this, by never having had a press wear out in 30 years of reloading.
Then you do not know what to look for or on the other hand reload very little I have seen worn out presses in my 35+ years of reloading - Not Mine I hasten to add and I am an engineer so know what to look for (having made a few presses in my time).
My Lee press does not cam over and my RCBS does.
(The only breakage with a press I have had, was with my Lee press and it was the linkage that failed. too much stress because of over camming?
It was quickly repaired with parts easily available from USA).
Provided the cases are properly lubed and the die correctly seated, there shouldn't be any undue resistance creating problems for the press.
Camming over will maintain a better consistancy of sizing & bullet seating depth/cartridge overall length, as, once the ram has reached TDC, no amount of additional lever pressure will change anything, including the bullet seating depth
because the ram has cammed over and is past TDC.
Flawed logic here you contradict yourself, "no amount of additional lever pressure will change anything" This is the point, no additional camming helps The amount of 'camming' is what does the damage to the press - tell you what, measure the frame deflection and correlate that to consistency of sizing and bullet seating.
I mentioned in my reply about the psychological need for camming, thank you for pointing this out.
Where the ram gets to TDC and does not cam over, as on a Lee press,
additional lever pressure will make a difference to seating depth, perhaps shoving the bullet a few extra thou. into the case mouth/neck.
Hmmm then your setup is poor, why would you want to try 'additional lever pressure' when the lever comes to a physical stop?
Just depends how picky you want to be over your seating depth as to which method you view as more appropriate. For absolute cartridge OAL consistancy, I'd pick the RCBS camming over - every time.
I am picky about my bullet seating depth but feel no need to abuse my presses.
Consistency is about setup nothing at all to do with camming, unless you use it as a crutch to try and achieve it, it's just not necessary!.