Claymore 10.2 freeze all the time not matter what you do...
Sgminer is just a tad slower but it works beautifully. I'm mining Monero and this works for me:
--no-submit-stale --kernel cryptonight -o xmr-eu1.nanopool.org:14444 -u yourwallet.yourrig.youremail -p x --rawintensity 1000 -w 8 --text-only