I'd actually like to have 11T, but I was always led to believe that 12 is all I can get with this hub. I'd be much obliged if someone who's got spare 11t cog tried it because I don't want to waste money on cassette that I'll have to throw away because it won't fit. Also can anybody tell durability HG50 vs HG41 because I read some reviews on the internet that HG41 only lasts 1200 miles that would make it 10x worse than HG50…