correct installation/use of stop beads

Hi all plastering noob in need of help. We have a re skim job to do at home. we have a cavity wall that had been clad with boards all around as there was a door and caseing originally there. This was removed and just wrapped with board beaded and skimmed. Now we need to rekim. i see we need to place an angle bead on the two front corners. But what do we put on the back corners the meet the internal wall? Angle bead would cover the back wall not being plastered. Do you use a stop bead? If so there would be a small grove where it joins the old angle bead. Can this be just filled with caulk? Hope this all makes sense.

 

can we see a picture?
there’s no need for stop beads on internal corners.

 

Have tried a crude paint sketch hope this makes sense

 

its been previously skimmed so the neatest way would be to scrape about 2” off the existing plaster away from the left corner with a sharp scraper or chisel and reskim to the old bead.
or bond a stop bead over and fill at the end with caulk or filler.

 

OP,
do you intend to remove the left hand skim bead?

 

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