Ray, I have been (Euro) nymphing since Jack Dennis (Coach of Team USA) introduced Vladi Trzebunia and Polish Nynphing to the USA back in the 90"s...
https://news.orvis.com/fly-fishing/nymp ... hing-world
I have been a tight line nymphing advocate for most of my life with a variable hand twist retrieve in still waters that I learned when I was 8.

High sticking and drag free drift methods that I learned later have served me well over the years.
I was introduced to fishing sighters in 2008 by Bret Bishop (the USA Fly Fishing Team Captain) from Boise Idaho. A few friends and I were fishing the Big Wood River and Silver Creek with guides from Silver Creek Outfitters. Bret gave me tips on some of the Spanish and French leader variations of World Competiton Fishing.