If you use the Cuve, it WILL take your mead to DRY!
If you're going to force carb, I'd just leave it with the D-47. See what it does, then when it's done you can pitch the Cuve....if you think you need to. ***EDIT: On Second thought, I'd actually thin this down as stated below. D-47 has a habit of crapping out at 12% sometimes***
1.030 is VERY sweet, and could be cloying depending on your taste.
Having said that, I think I'd bring down that 1.135 if I could.
Do you have a 1 gallon jug? It's always fun to have a gallon of something that you also have a big amount of. I've had this oversight before, and I just kept taking must out of the 5 gallons jug 1/2 gallon at a time and adding water back till I hit 1.100. Then I toped off a 1 gallon jug with the same must and pitched a different yeast.
Hint: A milk jug will hold your must until you find a gallon glass....as long as it's not for like weeeeeeeks.
Seriously. I'm here for BEER
It's Not The Size Of Your Rig That Counts....It's How Often You Use It.