Motion Plus is most reliable with the bluetooth passthrough mode, but this can't be used with the Dolphin Bar because it isn't exposed as a bluetooth adapter, therefore people don't recommend Dolphin Bar for Motion Plus games. There are some drift issues with Motion Plus in Dolphin that only the bluetooth passthrough mode fixes, requiring frequent calibration.
@The Real Jdbye I can not confirm this,all these Wii Motion Plus Games I have already tried inkluding Wii Sports works perfectly.
Look at the Homepage from Mayflash,the latest Firmwareupdate was from September 19th - yesterday.
I had a lot of issues with Skyward Sword when not using bluetooth passthrough, Dolphin Bar is supposed to work better than regular bluetooth but not as good as passthrough. It may be good enough for most games.
Possibly the issues were fixed with firmware updates, it's been a while since I last played Skyward Sword.
Anyway, if you aren't experiencing any problems that's good. No need to fix what isn't broken.