The rule for BCAPL Scotch Doubles is you cannot coach when it's your teams' turn at the table and you cannot take a time-out to ask questions. However, if your opponents are shooting, then you can talk on the sidelines (about anything).
My personal opinion is BCAPL instituted this no-time-out rule because the Scotch Doubles tourneys in Vegas were taking too long. If there is another reason, I don't know it. But allowing a 20-second time out for every game did add to an already long day.
The "no-time-out" rule doesn't bother me at all. Sure, there are a few times I wish I could take a time out to ask a question, but for the most part, I'm pretty comfortable and confident with my choices. The only time I wish I could take a time out is when I'm not sure which shot my partner would rather me shoot, lol.
At the last scotch doubles tourney I played in, after a team lost, they complained that their opponents were coaching, but without words.
You know - one player (usually the male) looks ahead and lines up where he would like the next shot to be shot. Now, if he was playing by himself, people would applaud him for 3-ball shape and thinking ahead. But when players do it during scotch doubles, it can seem like the player is pretty much non-verbally showing their partner which ball to shoot next.
The funny thing to me is, when guys do this and their female partner shoots a different ball because they aren't paying attention, lol. Or, they don't know that the guy is pretty much telling them which shot to shoot next.
My boyfriend and I do plan our next shots, but it's not to show each other which ball to shoot next, we are simply trying to figure out where we want the cueball for the best possible position.
But, as people plan where they want the cueball to be on the table, it does indeed look like they are trying to coach without words.
I honestly don't know how to stop this non-verbal coaching. And I think it would be detrimental to running racks if we couldn't plan the next shot.
It's a tricky little thing.
However, it's when people start complaining that makes me wonder about it most. On the other hand, I think the people that are most concerned are only complaining because they lost to a beginner. They know full well that inexperienced players would not shoot certain shots if their partner wasn't giving them non-verbal clues.
In other words, you wont hear people complain about top players doing this. And to be fair, if the better team had won, they wouldn't have complained at all. ;)
But in reality, the BCA Rules are: "No timeouts or coaching allowed. Any assistance (verbal or non-verbal) by a team during their turn at the table is a foul."