The larger the hdd the better you will be able to solve shares on PoC, this just sucks because

1. Hdd working 24/7 will bring you more losses, they die easily

2. SSD and HDD will cost alot more if this PoC algorithm becomes a real deal, I'm glad I don't make the decision in the past, I always buy some HDD to mine storj which is another PoC coin