Although I've noticed from my own, non-scientific tests that the Vinyl Flat works, it works like a charm. I appreciate all of you who go to the extremes in testing, but IMO, no need. I've had experiences in which, say, Janis Ian "Between the Lines" original pressing was wavy when I bought it used. I put it in the pouch for 4 hours, it came out basically the same, I put it in for 4.5 hours, still pretty much the same. This "original" lp must be of a different vinyl formulation. Just a note, the lp sounded great before and great after. I've had more positive results with the same weight vinyl in other trials. The main point here is, with the pouch, I think it's impossible to destroy the grooves. I've flattend at least 100 lps, on two, I've left them in 3 hours longer than usual, NO DAMAGE to the grooves. This is an extremely well thought out product and the most enjoyable product I've ever purchased in the pursuit of vinyl playback. My personal finding is for a regular weight lp, 4.5 hours, a 180gr. 4.45 hours. This can vary upward when the warp is more severe than usual.
Sonfjim: After reservations, I emailed John Martindale about the 45 issue, he said no problem. I subsequently tried one, first at 4 hours, then at 4.5 hours. NO DAMAGE.
