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Netakure
I reckon a junior cassette paired with TT rings would be the go. More teeth is better for efficiency and reducing the effect of the gaps growing instead instead of shrinking bug. If you can get more 2t jumps and even a 3t jump or two to cover the range of say, a 53/39:12-25, that's a couple of closer ratios in the middle of the range where the 1t jumps start.