As for your bike running hot in the cold, I live in Florida, I sit in traffic in 100+++ degrees and my fan will come on and the temp will never go over the halfway mark, bike runs cool and hard! And this is with regular Honda oil, haven't switched to syn. yet.
Oh yah, I use a ratchet with a deep well to take out the plug so I don't break the fin. I use a torque wrench with a deep well socket to put it back in, no mistakes this way!