Welcome from another Ontarian! I'm floored by how many Canadians there are here.

I shoot a lot with Kentmere 400: it and Kentmere 100 are the only B&W films I can reliably get in Peterborough, so if I run out and am waiting on an online order I'll pick up a few rolls. I've been able to push it to EI 1600 no problem. I've done it at 3200, but it gets very grainy very quickly and my gut feeling is that it never actually gets that fast. (At least in ID-11, which is the only developer I've tried it in thus far.)

EI 800:

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EI 1600:

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And this is EI 3200:

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Welcome to APUG, this is a great community with tons of good people and good information.