A "serious" band can reherse once a week. You turn up, having LEARNT the stuff at home, and play it right first time. If you reherse three nights a week (and have a day job+personal life), when are you finding the time to practise at home, and actually LEARN the stuff? Band's that rehearse every night of the week (and I know some that do), are probably learning the material at rehearsal which is an expensive, and frustrating way to operate - no "serious" band would do it.
Originals is slightly different, but I'd still recomment 1 rehearsal + 1 or more "song writing" sessions where you work out material at a more comfortable volume, and perhaps without the full band present.
When do fill in gigs I do one rehearsal (having LEARNT the stuff before hand), and then we go. If you put the work in before hand reharsal is just to check everything is working. For another project I do, we do one rehearsal before each gig (it gigs about once a month), just to brush up and maybe add some new stuff. We can add 2 or 3 new songs in a couple of hours, but that's because those guys are "serious" players, and do their homework.
Originals is slightly different, but I'd still recomment 1 rehearsal + 1 or more "song writing" sessions where you work out material at a more comfortable volume, and perhaps without the full band present.
When do fill in gigs I do one rehearsal (having LEARNT the stuff before hand), and then we go. If you put the work in before hand reharsal is just to check everything is working. For another project I do, we do one rehearsal before each gig (it gigs about once a month), just to brush up and maybe add some new stuff. We can add 2 or 3 new songs in a couple of hours, but that's because those guys are "serious" players, and do their homework.