Demand for mid-80's Donruss & Topps Tallboys?

I've got a few of these... mostly Donruss Action All-Stars from 83-86 and some Topps '84 & '85 5X7's (same pic as regular issue cards, just bigger).
Was wondering if it's worthwhile to get some of the top players graded, like Ryan, Brett, Sandberg, to name a few. I would probably only submit if I was pretty certain of a 9 or 10. I know there is probably demand for 10's in pretty much anything from this time period, but don't really want to take the chance if a 9 or 8 will not be sellable.
Anyway, just wondering what experiences anyone has had with these.
Was wondering if it's worthwhile to get some of the top players graded, like Ryan, Brett, Sandberg, to name a few. I would probably only submit if I was pretty certain of a 9 or 10. I know there is probably demand for 10's in pretty much anything from this time period, but don't really want to take the chance if a 9 or 8 will not be sellable.
Anyway, just wondering what experiences anyone has had with these.
Jim G
All-time favorite athletes:
Steve Sax, Steve Garvey, Larry Bird, Jerry Rice, Joe Montana, Andre Agassi, Karch Kiraly, Wayne Gretzky, Ichiro Suzuki, Andres Galarraga, Greg Maddux.
"Make the world a better place... punch both A-Rods in the face (Alex Rodriguez and Andy Roddick)!"
All-time favorite athletes:
Steve Sax, Steve Garvey, Larry Bird, Jerry Rice, Joe Montana, Andre Agassi, Karch Kiraly, Wayne Gretzky, Ichiro Suzuki, Andres Galarraga, Greg Maddux.
"Make the world a better place... punch both A-Rods in the face (Alex Rodriguez and Andy Roddick)!"
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