My mates 32 was running 16psi on the stock turbo for over a year
Told him to turn it down but he never did ! Took it off two weeks ago and threw my stocker 33 one on his car...... couldn't believe it when the stock turbo came off and not a thing was wrong with it! No shaft play etc......... must be a freaky one off cause every other person I know running 14psi on a 32 constantly has ended up sending the wheel into the cat eventually...
btw he made 178rwkw @ 16psi couple of months back - mods were full exhaust, FMIC, CAI & boost controller (not sure what brand - manual 2 stage bleed valve) - held boost flat until over 6,000 to 6,500 when it dropped off a little