Thank you so much for taking the time with such a detailed reply, that's very helpful. I assume you go TTS in both?The mahogany is the Cambridge on 87F, the tan one is the Harrold on 7wk. For me the 87 holds my heels better. 87F is way sleeker as well. Instepwise it's hard to tell but I'd reckon the boots to be a reasonable choice in your case. Let me know if you need any more help.