My oil burning pig. Pics too!
I know it wasn't the rings. I am running gapless top rings in my DD and have been using them since they first came out.
I have also tested them for blowby on the dyno and they reduce blowby a significant amount IF THE BORES ARE FINISHED CORRECTLY. No ring will seal on a junk bore.
I also use a PCV system on my street cars. ALWAYS. They work at idle and cruise. The I run pan evacs over the PCV. When you are at WOT the pan evacs do the work.
Jenkins was doing this years ago. It worked then, and it still works now.
Glad you have it sorted out.