Rocking the bike back and forth and getting more oil out definitely means that you’ll need to put more oil in. Makes total sense to me.The manual says that 4.1 liters would be required upon disassembly. So I think by moving the bike around during draining I got much more out than the 3.6 it lists..
The oil filter certainly isn't long enough to hold a liter of oil, it's only probably 2 inches longer.
But the dipstick reads ok, so I have to go with that. I've checked it several times now after rides.
I also run the M1-110 filter (or equivalent) on both my Honda motorcycles and my Honda CR-V. (Currently I have a Bosch 3323 on my NC. It was on sale!). I do it solely for convenience, not because I think it’s better.
Normal oil change for me is a little less than 4 US quarts (manual transmission, draining on the side stand without rocking). Maybe I’ll rock the bike next time just for curiosity sake.
I don’t usually ride my NC 8000 miles in a year so my oil looks like new coming out anyway. There’s really no need for me to get every last drop out. My last oil change was 2 years and 4000 miles. It looked like I could have put it back in the bottle and sold it. I’m sure this is because the NC engine is so awesome, not because the oil filter is a little bit bigger.