4 ring piston knowledge(NON LSR)

["todd" <todd@twinjugs.com>]

Any chance someone here has dealt with 4-ring 4-stroke pistons?
This would be two compression rings and two oil rings, one of the oil rings 
in the normal position(between the second ring and the wristpin), and one of 
the oil rings below the wrist pin(at the very bottom of the skirt).
They are all one piece rings except for one of the oil rings which is a 2 
piece ring(consisting of an outer scraper and inner spiral wound expander 
spring). 
Todd