I guess the actuator could die as I believe they have a diaphragm inside that could get a hole or split, (that's how unwanted pregnancies happen too) so it would take more psi to push it open, but if it tears completely, it wouldn't work at all. Meaning, Infinite boost and blown turbo...
I guess you have stock turbo? BOOM !!!
Richard got a High Flow on his 34 recently and using the 5psi actuator he was getting 11-12psi. Stock turbo was stock boost with the same actuator...
I might be able to persuade him to sell you the 10psi actuator I sold him.
Edit* I have a spare... I'll sell it to you and buy back from Richard!
PM me.