^Not really worth it to save the diode. I just hammer it out with a punch. The phr sled has another low power red diode in it anyway if you ever need one, or just order extra red modules in the first place.
As far as the violet focusing issue, that shouldn't be a problem with the Aixiz. That's the biggest problem with some modules from DX where the threads don't go all the way to the bottom. It can also be a problem when you have the silver focusing ring on the lens, you may have to take off the focusing ring, but probably not. Also, make sure you press the diode ALL the way into the module. Not just flush, but the diode actually has to go in farther than flush, it should actually be a little recessed into the module. I'm sure someone will be along with a picture to describe it better. If you have the diode pressed all the way into the housing (again, not just flush with the back of the module) and you're not using the DX modules which aren't threaded all the way to the bottom (which you say you're not), then focusing shouldn't be a problem for you.
