I changed my oil yesterday and switched to Rotella T6 synthetic. I began to worry about having the wrong weight (5-40) instead of the 10-30 Honda recommends.
When I read Dan's post he said he was going to use this oil so I put it in. I used a Honda filter that I purchased.
I did not remove the plastic housing to get the filter out, but it was nice that I had a thin filter wrench that fit perfectly.
I'm not sure I noticed much difference in the shifting because the bike is so smooth anyway.
I also installed 3 different charging ports. 1 for the trickle charger, 1 for my heated gear and one USB that I lead up front to charge my phone while riding.
Oh, I also changed the final drive oil to synthetic.
I have around 1100 miles on the bike.
You could have probably reduced the number of wire pigs/plugs and not installed the trickle charge wire harness. As most heated gear plugs will accept a short wire adapter that allows you to use the trickle charger plus directly into the heated gear plug.
