so, i guess this applies mostly for ppl who don't use "solo follows selection"
so what happens is, when u press "S", the track is soloed.
cool.
now, when u select another track and press "S", this track is "ADDED" as a solo track. (in total, u've got urself 2 soloed tracks)
So, sometimes, i found myself wanting to just "solo"ONE track only, even tho another track had been solo-enabled.
so, i made a macro and gave it a name called " True Solo"
make a macro
1. global solo
2. solo
now, this will basically turn all solos off and then solo just one track (that you have chosen).
I remapped this "True Solo" as {Alt + S} on my keyboard shortcut.
Hope this helps somebody :)