I just jumped to the 38mm external for mine this time. I'm not a big fan of the 14b/16g wastegate setup...I used to have more luck running carb springs on the flapper than the actually wastegate actuator. :P

 

ya well since im going to up grade (hope fully soon)
i dont want to be modifying or adding money to this set up
im doing more research now (not easy going through 255 pages of old posts)
and im considering doing a tune for the boost creep with a ign cut at like 15 psi so it wont spike