I was advised by Tony Corke (bike fit dude) about 14 months before TD to put my cleats right back, and I did, while I was in for a fit, and the saddle also went down about 4mm. Really helped, and I get much less ankle swelling, but it does still come on after 6 hours without a break, at which point, I try to raise my legs for a few minutes, and slack off my shoes a bit around the top strap, and check the fore straps are tight enough that I wont slip into the shoe and get more rubbing. Never had it so bad that it's worn the skin though.
I was advised by Tony Corke (bike fit dude) about 14 months before TD to put my cleats right back, and I did, while I was in for a fit, and the saddle also went down about 4mm. Really helped, and I get much less ankle swelling, but it does still come on after 6 hours without a break, at which point, I try to raise my legs for a few minutes, and slack off my shoes a bit around the top strap, and check the fore straps are tight enough that I wont slip into the shoe and get more rubbing. Never had it so bad that it's worn the skin though.