Need to recap my Classe Audio DR-8 Amps - need suggestions

Caps that need reformed are garbage and should be replaced. If you've got DC on the outputs and you're cooking woofers there's a good chance that's the result of a cap leaking. My vote is recap before you're stuck replacing more woofers or transistors. They might have another 5 or 10 years left in them at best. Electrolytics aren't meant to last forever. 

Caps that need reformed are garbage and should be replaced.

This is not correct, I’ve done it many times with new old stock Siemens that have been on the shelf for 15 years or so, and other good quality ones, and I’m sure the ones in the Classe aren’t rubbish probably Nichicons.
So long as it’s done as I stated above it works great, that (10v-20v) is the volts you increase every hour or so.

That sounds very foolish and it's a great way to fry diodes, rectifiers, and transistors. The only way to fully reform a capacitor is to remove it, put it on a high voltage leakage tester, and watch the leakage drop off as you progressively ramp up the voltage to it's rating. That's impossible to do in circuit. Doing what you suggest would, at best, reform them to their idle voltages and no more. Even if it were a good idea, which it isn't, you'll never reform them to their ratings and you'll only end up with a unit that's just barely on the edge of leaking. Since the only way to do the job "right" (if there is such a thing) is to remove them, you might as well replace them. 

garebear since you know some much why don't you reach out to Classe' and see how far that gets you.  The OP asked about sending them back to Classe' for repair and it is relevant and correct that the company doesn't exist anymore other than as a name brand as part of a holding company.  On another forum two reviewers with long term relationships with Classe' reached out on behalf of someone like the OP and it got them nowhere. But you go ahead and try yourself.  Make sure you have your facts straight before you call me or anyone else out. 

Classé audio is now owned by the parent company. Sound United. (   soundunited.com. )  they own Denon,Polk,Marantz,Def-Tec,Heos,Boston Acoustics and now Classé.  Maybe contact them and see what they say. I imagine at the least you could find a authorized service center to do the work.  Good luck. I love Classé. I have a CP-800 and 3X  CA-M600’s. Absolutely love them.