To be 100% honest i dont belive its the CR parts.
My turbos were pretty smoked the piston rings seals were basically welded to the turbine shafts.
The shop had a hell of a time getting them out to replace them.
I belive the turbine shafts are just toast.
Even though they got balanced i think its just not perfectly round especially the turbine side were the seal goes.
Funny thing is i have zero oil blow by no smoke and super great performance.
Also my tune could be off for them also.
I am in the process of looking for new turbine shafts that will be a direct fit to stock parts.
Im havin a hell of a time though but i belive i will find them .
Someone must know what will work AS far as the turbine shafts and bearings that go in it?

Anybody know what will fit without having the housings machined?
Can we use a different exducer and inducer on the turbine side .
It would not bother me to get even faster spool but not sure if the car would like it .
I never do over 90 on public streets never and if i do it very rare.
I like the launch better than top end.
What size journal bearings would i need if i wanted to go to a larger size so i can have my factory shafts fixed ?
I cant belive there is so little info on the turbos and why cant we get a turbine shafts for em??
Bottom line im convinced the problem is user error or the shafts.
I recommend the BILLET wheels for sure.
For all i know i smoked the bearing when i started the car but i did pull the coils and pre primed them.
I also used a turkey baster full of mobil 1 to fill the turbo oil lines when i installed them .