As you will have seen from posts over the last few months, this mode and band have proved very successful here, irrespective of conditions. Every day, I copy stations from all over western and northern Europe on 6m by this mode. I think my country count is in the low 20s, but I have not checked recently. Best DX is Spain, Balearics, Italy and Sweden. This mode just works.
See https://sites.google.com/site/g3xbmqrp3/vuhf/6m_msk144 .