@Old Bill I think there was a time when we adjusted the RTV system by lowering the percent of players required to say "Yes" for it to succeed, and when that happened, players abused it. What @Talbot says above is proof of this. By lowering the required percentage for the RTV to succeed, players who dislike maps because they don't like it and/ or don't want T6 cades to win will exploit this change and yell out an RTV vote for stupid reasons. As I said above, given that most players on our server listen to the first person who shouts something out, if someone shouts out for an RTV, others will subconsciously follow, turning the system into a tool players use for their own selfish reasons.
Testing the waters is fine, but when it has to be done live, that's risky, and most of us already know what could happen should we lower the required vote percentage for an RTV to succeed.
Sure, that could work. Or go with 80% to be safe.