How long to wait on Mack in dynasty

He is considered a DL. He is younger than Watt, might be just as good. I am thinking 7th/8th round. Already have most or all of my offensive starters by then, but no bench players. Watt and Keuchly probably will be drafted too high for me. I he worth it there? Can I get him there? Can I afford to wait even longer on him without risking someone else grabbing?

I have Mack ranked ahead of Watt for this year. That said, I would grab him shortly after Watt goes. I think most people know about Mack know so I wouldn't expect him to fall too far.

Watt above mack, hands down, on a down year he beat Macks break out season( factor in he had a big 5 sack game) there is now way Mack does what he did last year.  Hes the clear #2 player behind mack. Watt gets sacks, tackles, TFLs and knock downs