well i will test older version with intensity 16 at least 24 hours, then try newer intensity 15 version as well, just need to test at least 24 hours for stability and average pool daily hashrate, i somehow think that intensity 15 will have better stability and less demanding for my rig let's see
I hope stability is the same for both. 16 have surly higher memory demands than 15, but offers (on my system with a 1070) some percent more hashrate - not just 20 MH/s more. But you are right to make some long term test to find out about stability of the system - and hashrate @ pool.
Please report if you have some results.
Thanks for your support!