I am so with you there,
I can't tell you how many times I have witnessed dr putting the wrong insert in and wondering why things don't work
We used to do a bunch of Zagg attachments and in Zests wisdom to solve attachment wear/slop to add a bunch of oversize male attachments to solve the issue. Clients would never ever chart and always wondered when then changed the attachment why it just didn't feel as tight.
Another tool to fix a problem that should not exist