Ime the same sound jockeys that are insistent on a bass direct are the ones that goose the lows and decimate everything but a bit of clank. So I make a point of having them listen to the sound on stage before having them listen to my post EQ signal. My sound is very tight, staying out of the way of the kick drum.
We don't want that thundering either. It's even odds on the drummer getting up and removing the mic and just kicking the hell out of it when needed.
One way to find where best to put your sub is a very simple experiment.
Put it where you want the biggest bass ie the middle of the dancefloor. Play a bass heavy track and go around the room to find the best booming position of the available wall spots to put the sub for the show.
Put the sub there and it will thump back where you want it.
Easy for most desks to roll off the highs. Your SC is more flat response than most cabs.
Your other option is to mic the cab. Expect a lot of pushback from sound yobbos that never did it before and expect doom. You can avert most of it by being hyper organised with your mic and stand so you are ready to go from your mic to their DI XLR in or just the lead, before they go messing with your lead to amp.
Countryman 85 DI.
So long as your amp isn't noisy your amp signal will go through to the desk with no drama.
Best to have a flat respsonse full range cabinet.
Work out in what way?
Pub, don't need it, kickdrum just needs kicking.
Small club, mic up the kick, happy days.
Big club, have to be a double 18 single sub and everything else mic'd, or a low key night.