DAMN! I'm really disappointed
This miner was looking so promising. I have been using XMR-Stak for months now to mine (mostly) Loki using (mostly) cryptonight-heavy.
I am running Windows 8.1 X64 on a core i7 7700K, with 1 x gtx 1080 and 3 x gtx 1070s.
I have used Nvidia Profile inspector DmW to force P state 0 and I run all the cards at core +120 memory +500 (except the 1080 gets memory +400).
XMR-Stak gives me these hashrates: 1080 ~ 680 h/s 1070s 720-760 h/s
..so you can imagine my excitement when I tried CryptoDredge and immediately I see: 1080 ~ 800 h/s 1070s 880-900 h/s !!!
WOOT! I said to myself - I've found my new favourite miner.
BUT as always seems to be the case it was too good to be true.

I have a random system hard-reboot. Sometimes the miner runs for just a couple of minutes. Once it accepted about 100 shares and must have run for about 20 or 30 minutes. This was after my driver update but with my full original overclocks.
I have tried updating the Nvidia driver from a 397.xx version to a 398.xx version. I am avoiding going into the 4XX.xx drivers because I recently updated to 417.xx and saw a drop of 20% in XMR-Stak.
I have reverted back to P-state 2. I have lowered my overclocks a bit. Both of these tactics reduced the hash-rate advantage and actually seemed to make no difference to the reboot occurence.
Has anyone else seen anything similar? Any suggestions? XMR-Stak will run stable for days. If I had kind of stability and the hash-rates I see when it does run I would be a new convert and I would also go tell any Nvidia XMR-Stak users who would listen that they are missing out.
Unless this is a sudden coincidental hardware fault, it just seems to happen using CryptoDredge 0.9.3.
this is what optimized xmr-stak can do in cnv8 (3200). 1080 Ti, 1080, 1070 Ti and 1070.