You'll just hear the same different opinions here again. For instance, I build my 2-stroke top ends dry. But at least two people agree that you start it for 5 minutes or so the first time, keeping rpms low to 1/4 or so. Just let it warm up good. Then let it cool completely. The longer the better. Start it up a second time and ride slowly, keeping throttle less than 1/2. Once engine is good and warm, stop and let cool completely again. Third time, ride a little more agressively, maybe up to 3/4 throttle a couple of bursts for 15-20 minutes. Again, let motor completely cool. At this point, you should be able to ride as normal. I'm not familiar with amsoil, but I break mine in with whatever brand--synth or non-synth--that is in favor with me at that particular time. Just use good high-quality oil mixed at what you normally mix.
Of course there are other opinions, as you already know. You'll never get a consensus.
