Well...I ask for some help. I have tried to install the VTAF in my P9 and it does not work, I mean, the total weight increases in 11mm ( I bought the VTAF with the base in order to avoid to make a new hole in the P9 pitch ). Even using differente kind of spacers, I can not achieve a good VTA. It is still too height. In addition, the screws supplied are longer than needed, do not allowing the correct adjustment. I have alredy contacted Pete but, even showing a good attention, I was not able to solve the problem yet. At the end, I am not using it and I am really frustated. I will appreciate any help.