Few Simple Questions

[RC-Monster Mike]

I think the EVX BEC delivers 5 volts, but I am really not sure. It may even deliver 6 volts.
I usually pull the tin strips off with plyers and then dremel the rest off (this also makes a nice rough surface for the solder to stick).
Almost any wheel/tire combo is lighter than the stock set. RDLogics has a mounted tire wheel combo that is basically the proline bowtie, which is one of the lightest tires available for the maxx, and gets good traction on most surfaces. They are [premounted and glued, which is nice! Otherwise, you could get bowties and mount them on a light wheel (such as the rpm titan or proline velocity). I believe I have all of these items in stock, actually.