I use a commercial program (Alphacam) and it will allow the tabs to ramp up and then down. This just lifts the Z axis during the the normal X Y travel and does not require any extra cutter paths. If I don't ramp then it does stop at the start and end of the tab and uses additional cutter paths. I keep tab lengths and height to top of tab to the minimum and and can usually remove the tab with a sharp knife. Some sanding is required (not much), but this is far better than losing the part. Carefully placed double sided tape is my own alternative to tabs, but can be difficult to remove. A vacuum bed is really good, but small components are sometimes a problem.