Hello, just printing out the parts for the mpcnc, and about to order the assembly kit of parts. I see the difference in parts between the solder-less and the roller motor mount, but can’t really tell why one is better? I did quite a bit of looking around, and I’m sure it discussed somewhere- but I have yet to find it. I saw in the parts section, it was mentioned in the wiring kit available. Can anyone help me out here? I already printed out one of the roller mounts, but suppose i could print out all new solderless ones as well. Thanks.