Sure. Most of my experience is in California, but I've found the grading differences from region to region to be just large as from out of state or international.
I climb 5.11c+ comfortably in the gym. I can barely lead a short Yosemite 5.8 outdoors; it's terrifyingly more difficult. That's a bit on the high side of a delta, but still typical.
I would say the difference is 75%+ in the scales simply not being the same. For the same grade, the holds would be far smaller, positions much more technical, often far more sustained, etc. The other ~25% is the environment is much more challenging, even with perfect weather at sea level: route finding is harder, you have to manage gear, leading is scary, etc.
I've done a few high Sierra climbs. Grades there are little softer, and my limit is probably ~5.7
I climb 5.11c+ comfortably in the gym. I can barely lead a short Yosemite 5.8 outdoors; it's terrifyingly more difficult. That's a bit on the high side of a delta, but still typical.
I would say the difference is 75%+ in the scales simply not being the same. For the same grade, the holds would be far smaller, positions much more technical, often far more sustained, etc. The other ~25% is the environment is much more challenging, even with perfect weather at sea level: route finding is harder, you have to manage gear, leading is scary, etc.
I've done a few high Sierra climbs. Grades there are little softer, and my limit is probably ~5.7