Anyone using claymore to OC

Claymore dual miner is capable of setting everything on the cards in your batch file / cmd prompt, is anyone using this? just curious how well its working for you. Is this also available in the linux version? Below is from the readme, I hear a lot of people complaining about settings sticking during reboot or other problems, why not put it in your bat file? I think it would be helpful if you had multiple cards.

-cclock set target GPU core clock speed, in MHz. If not specified or zero, miner will not change current clock speed. You can also specify values for every card, for example "-cclock 1000,1050,1100,0".
Unfortunately, AMD blocked underclocking for some reason, you can overclock only.
Note: for NVIDIA cards this option is not supported.

-mclock set target GPU memory clock speed, in MHz. If not specified or zero, miner will not change current clock speed. You can also specify values for every card, for example "-mclock 1200,1250,1200,0".
Unfortunately, AMD blocked underclocking for some reason, you can overclock only.
Note: for NVIDIA cards this option is not supported.

-powlim set power limit, from -50 to 50. If not specified, miner will not change power limit. You can also specify values for every card, for example "-powlim 20,-20,0,10".
Note: for NVIDIA cards this option is not supported.

-cvddc set target GPU core voltage, multiplied by 1000. For example, "-cvddc 1050" means 1.05V. You can also specify values for every card, for example "-cvddc 900,950,1000,970". Supports latest AMD 4xx cards only in Windows.
Note: for NVIDIA cards this option is not supported.