I used Durabond setting type compound around an opening I cut out for a breakfast bar. I put drywall in the area I cut out with the original plaster still surrounding it. I had gaps between drywall and plaster and I was told to fill it in with Durabond mud. My question is can I use regular drywall mud over the Durabond mud? Or what kind of mud should I use to finish it? I still need to even out the plaster to the drywall because theyre faces weren't flush.