[linux-audio-user] Global reverb setup

Hi. Using a global reverb in the final stage of a mix, especially when using Jamin in Ardour, may improve tremendously the global quality of the sound. But I wonder what kind of reverb can be used to obtain the most neutral and most efficient effect, considering that, by definition, I don't know on what audio system my mix will be heard. I know such a question implies subjective preferences, and depends on the kind of music being mastered. But I imagine some advices could be given to avoid the most common mistakes, also : - What's the best kind of reverb to use ? A plate one ? I am mostly satsified with the gverb plugin, but maybe a plate one would be more efficient, regarding to the immense type of existing audio systems. I find the TAP reverbs far too agressive for being used in this final stage, am I wrong ? - Are there typical setups for this kind of use (length, tail, damping) ? - What's the best place to put this reverb ? On a bus of Ardour, at the output of Jamin, or directly on the master track, after the return of Jamin ? Or during another step, after having bounced all the mix through Jamin on a dedicated track ? - Are there some things to take care of, not to get too many things blurred, especially reverbs applied during the mix only to some instruments ? For example, if I use a special, somewhat strong, reverb on a snare, is there a special way to setup this reverb, or the global one, for it and the snare itself not to get drowned in a sea of blurred and vague background noise ? - More generally, is this kind of practice very common in mastering, or is it better to do such a thing before this final step ? Of course I know I can try and try myself to get the best kind of result, and also search Google to find tons of contradictory practices :), but I would really welcome some advices as I'm not yet really professionnal in mastering :). So thank you very much in advance, Y.