So should I try and sell Mason? I was thinking about packaging him and another piece for David Montgomery.

Mason is locking down the most RB friendly postition in FF by being the SF RB. Ride Mason and play the waiver. Don't help some other team win a championship. I know he seems like he will get you a big juicy return on a trade but unless you are playing absolute donuts, they will always try to reduce the value you get back. Tendinitis/Tendinopathy isn't something that they are going to be able to rush CMC back from considering the alternative is him coming back too soon and his tendons snapping, literally.

yes

do it

Sounds complicated but I would try to trade Mason for a WR. Then use your new WR depth to package for an upgrade at RB. Whoever said it before was correct, its tough to trade a RB for and RB. With all the WR's going down lately I think it would be easier to trade WR's for an RB

I traded Mason to CMC owner last week. Mason, Amari, and Jameson for Harrison JR and Monty