Just for the record, so there is no confusion, I'm no amateur engine builder, been building 2 stroke flat track engines since I was a teen ager, been a motorcycle mechanic as profession for 12 years, built my drag bike from the ground up in my backyard shop, ai have plenty of expiernece in this field. This is such a simple motor, already tripled the factory horsepower with minor tweaks and adjustments, looking forward to building it to be the best it can be. For the ring friction, I do have a solution for. Once the thermal barriers and skirt coatings are applied to the piston, I will send it it Micro blue racing to have the cylinder walls rings, piston ring lands, pin and bearing all micro blue coating. It's a friction reducing coating, tungsten disulfide that is applied to walls and metal to metal surfaces, retain oils and has a fraction coefficient of. 001%. This helps with keep everything oiled and prevents seizing while reducing friction. All these things I am doing have been treated vigorously with my racing bikes, should be a super fun project and I'll get to teach my little man so much through the process.