Interesting. Can you give some details about the second one, centering around the Help! era?
We should have a bootleg section here. Only serious collectors and fans would contribute!
I became a huge collector of vinyl boots in the 1980s. High quality vinyl boots only had a narrow window, in fact. Low qual vinyl boots abounded in the 70s, but the Ultra Rare Trax series stunned us all, and opened up floodgates (thanks, John Barrett!). Then a few years later, CDs took over almost overnight. There is only about ten years, tops, of high qual vinyl Beatlegs.