Hi doktor,
Nice job,
Testing version 1.6.3 with heavy and cryptov7 i got better hashes in vega (30hs more)

Using the bittube v2 algo i got a less hash , 900 hs.. instead of 15xx..
I tell about this problem some posts ago even in prevous version after a time the hash drop a lot , in bitube algo.

Can you check your kernel for this algo.

Im on 1709 windows version and using 18.6.1 amd drivers

Thanks
I can't replicate this, as when using the 'pre-heating' trick on bittube algo i get a hashrate of ~1580hs and it stays like that for hours +- a few %.
Also no one else reported this here on the forum except you, but i have a few people i know they mine bittube and don't have this problem.