Yeah I'm with you on that thread Freddi, The Pretty Things, The Downliners Sect, The Yardbirds...are absolutely top quality names in my book, and of course what you are saying wasn't necessarily just the preserve of British groups, since you are taking into consideration the likes of mighty Dutch beat-punk-psychers Q65 - and of course you would have to add to that the OUTSIDERS - only one of the most innovative, superbly illuminating beat-psych era groups to ever have walked the planet - but certainly it's true for a lot of the UK groups, and especially those who had more than a modicum of forward-thinking philosophy, or at least stance and attitude, that things like production values would become more and more important as time marched on. You just need to wrap ears around everything from The Pretties' 'Emotions' LP, The Yardbirds' eponymous '66 blaster, and onto the likes of The Pink Floyd's phenomenal 'Piper' set and The Pretties' monumental 'S.F. Sorrow...Pure dead brilliant as we say in Scotland!