Try to keep the conditions when checking the same to. Lifting the bike onto a paddock stand, tipping the engine forward, will move the oil level.....
If you're down to measuring 220ml.... then you need to make sure the bike is in the same spot, on/off paddock stand (i'd measure on one as the bike will be vertical), i'd check stone cold as the oil will take a while to run back to the sump fully...etc.
Does sound a little excessive and the thicker oil will defo help. It might be cured but just check under the same conditions
