Don't do it.
Troop meetings are not merit badge school and a main point of the MB system is that boys mature and grow personally by having to contact a stranger, set up appointments, and be accountable to a person. What you are doing is wrong and undermines your fellow scouts' experience. That your troop has been wrong in the past doesn't give you license to be wrong now, and does not relieve you from being wrong yourself if you continue.
Your council maintains a list of MB counselors, if there are boys in your troop who want the MB, they should call the council and get a real counselor's number.