Personally i think 12m is a better band then 10, currently i find 12 the best band for prop to far away places like the pacific, VK/ZL ect from here in EI,
In EU there is lots of ex 11m ops so they all have big monobanders and amps so the competition for even run of the mill DX is a lot more on 10, and the standards of operating are worse,
My cert for 5BDXCC still has not come yet as the awards desk has a several week backlog. But I just for 100 on 12M, for 6BDXCC endorsement. LOL
Way to go! To me, 12 has always been the red-headed stepchild of the HF bands for whatever reason.