Hi guys. Greetings from Malta.
Speedo. Quite right. All you do is cut the wires and solder together, then cover up with a bit of shrink tube. It's safer this way.
Yorkie. I run my Yoke modified. The diff outdrives form a bit of an indent with wear with very little use, but it doesn't seem to get any worse. I have had my plastic diffs for 4 months. i replaced them before the start of our race season. We have had 12 race meetings, so if you add quite a few hours of practice to that you will agree that they are not really a problem.
Just don't let them worry you. Oh by the way, I don't bother with grease or anything, prefering to keep everything clean and dry.
Happy Christmas and a successful and prosperous new year to you all.
regards
Joe from sunny....but cold....Malta.