I am sort of in the same boat. I have 2-2.5 gallons on a Plus-btts and I can not get anywhere near 4.5 on the LSN. The motor still is really tight and can not really be turned over by hand. I set my needles at 4.5 LSN and 3.5 HSN Wed and it leaned bogged so bad it would barely run. I ended up having the LSN basically flush so I am at 5+ turns out just to keep it from lean bogging and dying. I am 1 hour in from 3.5 on the HSN. With these settings the motor ran very well and I ran it for 45 minutes straight but the temps were 265 to 280 but the motor had a lot of smoke and was really crisp with no flame-outs when refueling so go figure.

I have replaced all lines, gaskets, and done tests to make sure I do not have a leaky bearing and all passed with flying colors. I just think the motor still is not completely broke-in and once it loses more pinch I will be able to lean the LSN a little more. I have a well broken in P5 and I am at 4 turns out on the LSN on it and it is fine and is perfect.