I used these rings in my rebuild. they are really good. the oil ring is pre seated. the top ring is moly and seats in a matter of seconds.
http://www.competitionproducts.com/Speed...ctinfo/E245K30/

I did a dry break in on my engine and it worked really well. they do it in motorcycles all the time and I thought I would try it on my rebuilt engine. you spray the inside of the cylinder with tungsten disulfide and burnish it in. then coat the pistons and rings with it and assemble it all dry.
then when you start the new engine without oil on piston or in cylinder, except pin I put a little there.
When I fired mine up to break in cam for 20 minutes I was amazed. there was no extra heat during break in and rings seemed to seat instantly. No smoke no heat, I did coat all internal engine parts with tungsten disulfide. worked really well.