Clutch went through something somewhat similar, according to an interview with I think Neil Fallon. They burned out for awhile on playing "Electric Worry", but

Clutch went through something somewhat similar, according to an interview with I think Neil Fallon. They burned out for awhile on playing "Electric Worry", but were convinced that it was worth playing because it was the ace up their sleeve- so long as they included it in a set, fans would be happy and overlook any experimental new stuff that didn't work out as well. Of course, they also have a reputation for crossing into nearly every subgenre of rock, so their hard core fans are perhaps a bit more tolerant than other bands when they branch out. Even so, having watched a number of their concerts online (never had the opportunity to see a show live, sadly) they do seem to have a healthy blend of old and new in each set, and the atmosphere is always electric.