GTX 1070 vs GTX 1060 3GB

Hi guys,

thanks to all the help and topics in this forum, I've successfully build my first rig.

Running 3x GTX 1070 on Ubuntu with EWBF miner atm...runs like a charm.

As I would like to put in 6 cards in total, I was wondering if I could throw in another 3 GTX 1060 (3gb).

Does it make sense to "mix" or would you recommend running 6 GTX 1070 instead?

The GTX 1060 seems like a card with a very nice price to hash ratio.

many thanks in advance