Yes, if I have no weed I absolutely will. I've smoked rez in dryspells ever since I was a kid, and so has everyone around here.
It's never given me a headache, and it actually has pretty powerful effects in my experience. I feel like it's much more stoning and less cerebral. We used to do it with hotknives which was great, but that's too unclean for me now.
If I have to resort to smoking resin now, I'll wipe some out from my slide and smoke it trough the bong on some ash. Rarely is there need to smoke resin now, and I'd rather re-vape vaped weed.