I would guess the compression will come up 3-5 psi when rings seat..as for the oil..a pint should do it..mainly the premix is to protect the motor in case the oil pump has an air bubble or some other fluke..just keep a watch on the oil tank on the first ride and make sure it is using oil from the tank....I think a lot of people are going to be surprised on how good these dragons run now.....(compression is good..but if too much compression is getting the motor into det or hotspotting pistons..it hurts power big time...the high alt guys will most likely want more compression but with both previous updates mine was right on the edge from sea level to 6000 ft...I think less compression with more timing may do more on these sleds then the big compression with light timing...from what I am hearing the new map is pushing the timing pretty good..which is why the deto light got turned on now as well as the deto response being so aggresive..