AMS Buffer Quick Internal Guide

During my search for a removal of the “pull back filament error” and in the quest of an improvement of the PTFE tubes routing, I have made a small Internal Guide which goes inside the AMS Buffer.Compared to the other solutions I saw, it guides the PTFE tube as close as possible to the Buffer system, independently of any outside movement that could occur on the tube :Situation “as is”, without any additionnal guide : any outside misalignment of the PTFE tube will have an effet inside the Buffer system. So the sliding mechanism can rub, wear quickly and give you a printing error Situation with the Internal Guide : the orientation of the PTFE tube inside the Buffer is completely independent of any outside curving/movement etc… Please note that the AMS Buffer is empty on the picture as I have already moved its components to my buffer re-design (see this model : https://makerworld.com/en/models/784757#profileId-722362), but it does not need any disassembling.Installation is in fact straight