Charlotte_Mage
This is good and everything but since now mc finally create an Upgrade copy of Gwens Omnitrix with no Flaws, is time for mc to Talk with his Grandpa and Gwen about his Multitrix, he can't lie to them the whole summer and even if he could they wont forgive him for doing that, he can simply say the truth, they already know mc is smart, is not weird for him to be able to do this with grey matter and upgrade, worst thing can happen is that gwen ask Mc to upgrade her omnitrix
I'm guessing Ben's current copy of the omnitrix is pretty low-tech. His copy is mostly constructed out of nanites, which can't emulate all of the dedicated hardware of the original. It also has plenty of weaknesses due to being mostly nanotech. If Ben wants a proper omnitrix, he'll need lots of resources and extraordinary manufacturing methods for the hardware. Basically, Ben's copy is just his own prototype that he'll either constantly upgrade or eventually replace.