Yup - do that often as I can. But some clubs won't ask you to sing even when you go because you're not a member (can't be a member when you're on the road 4 nights a week and want to see anything of your family). And I've even travelled to do supports, gratis, only to be given 3 while a mediocre house band does 8. Don't get me wrong, I usually enjoy floor spots - they're always interesting and often stunning. I'm talking about comers-in who expect better.