Insulate with VITA Modisol again before placing on the dry model. This way, any material applied in the basal area will not stick to the model.
Note:
After firing, place on the model and grind the contact points.
Use a diamond tool for smaller shape corrections; separate the approximal spaces carefully using a diamond disc. Make sure not to damage the substructure.
Then incorporate natural surface structures (e.g., growth grooves or convex / concave surfaces).
Please note:
Before the glaze / stain firing, clean the restoration thoroughly of grinding dust with a toothbrush under running water or with a steam jet.