I have real problem with ventures, I wrecked my first set by blowing out the pivot cups, skating metal on metal for months until i took them appart and realised I now had to fork out a significant amount of money to replace them. FF a few months and now my pivot cups are again coming apart, everyone in my crew I talk to tells me they never replaced their cups in years of skating and some were even clueless that their trucks had pivot cups in them. So am I unlucky or have some of you encountered this problem too? And if this is of any significance I ride my trucks on the very loose side.
I have definitely noticed if the trucks pivot point is damaged, new replacement pivot cups never last as long, compared to those trucks that have undamaged pivot points. Trying to smooth down or take sharp edges off pivot points works a bit but often the change in shape or length of the pivot point will alter the turn of the truck too, or how much it will sit down in there.
Regardless of loose or tight trucks, the bushings can also change the angle of the hanger for better or worse too, so if the bushings sit lower (especially the bottom bushing) then the pivot point will also change and put more pressure on the hanger end.
Silly as it may sound, putting a bit of shoe goo in and around the pivot point and letting it half dry is one way I know people have been able to sort out their pivot cup issues with damaged or worn down pivot point on the hangers.
Keeping an eye on the trucks also helps, but you don't have to keep taking them off after every session to check. Seen people do that and go through a lot of pivot cups way too quickly without them even being worn out, more from the fear of having an issue with them than anything else.