5 months and the level is the same?
Heck Mick, you are one lucky son of a gun.
Generally though, to be honest, anyone who says their's doesn't wet sump usually hasn't undone the sump plug after a month or so of non running to check, or they ride their bike regularly and don't leave it long enough to build up, or it has an anti wet sumping valve fitted. A friend of mine was in the 'mine doesn't wet sump camp' because he never looked inside his oil tank but it definitely wet sumped when he did take notice.
You say its not run in yet, by that I'm assuming that the engine has run. If it hasn't run yet then you can get an air lock in the supply to the pump and bearings since it's not primed. Just a thought, check that the vent at the top back of the oil tank under the seat is clear of paint or mud etc. If this is blocked the tank will restrict oil draining down to the engine by building up a low vacuum, mine was clogged and blocked when I checked.
Alan