interesting and technical thread. i have dark skies on the coastal range in a high rain fall area.
i tried several times with my stock standard 8" sky watcher and TMB 100 9 mm / 25 mm cheap plossl. with out seeing the broader area of nebulousness. causing me to double check i was looking in the right place. also i was unaware of it's (apparent) degree of difficulty.
the very first time i tried with the GSO 16" and same ep, there it was, faint and translucent/transparent but easily seen AND right where it should be
clouds interfered with attempts to id the actual horsie, a Y2C to look foward to.
Lindon