I maybe wrong and didn't test in detail because I use my 7x370 test rig just for short while but I see many negatives in using Optiminer - including losing the monitoring aspects of Ethman, excellent controls of temperature management, GPU core & memory settings, etc. etc. in which to me are the REAL hidden gem of ALL Claymore miners, on top of the raw blazing speed.
IMHO, Claymore need to unleash v9 (Windows and Linux) and claim who is real king of the hill BECAUSE Optiminer now released his latest version also on Windows. While I begin to understand Claymore's position with SilentArmy issue in v1.1, since Optiminer now has come into the Windows with v0.6 ... I think Claymore v9 (Windows and Linux) is justified.
With all this chatter of a successful hardfork and "state clearing"; ETH going POS soon last night*, ZEC stabilizing at the $60s range, XMR went crazy overnight, ZEC (and XMR) mining use LESS power than ETH mining, the answer is clear..... v9 (ZEC) and v10 (XMR)
What say you Mr Claymore?
* https://twitter.com/VitalikButerin/status/803858020254027776