I've been using mobil1 (10w30) with mobil1 filters since 5k, got 13k now with no oil consumption. I change at 5k intervals. I used regular oil (5w30) upto 5k with one change before the switch to syn.

 

Here's food for thought:
Something I learned from my machinist is that while on my break in, I should use Motorcycle specific oils. They have a higher viscosity reisitance even if they're at a simlar weight. you gotta think about it, motorcycles heat up the blocks at over 2000* way past the melting point for aluminum . Anyways...not only the viscosity resistance, but because it doesnt have any friction modifiers, like teflon and moly. that stuff will get to your cylinder bores under heat and friction and smoothen the lines out. the cylinder has scores in them to file down the piston rings during break in to get a good seal. The downfall about motorcycle oil, is that they're pricey vs automobile oil. The oil I use in my ZX and my TZ costs me $15/qt.