The BSTV+C+P electoral reform scheme was proposed for consideration in all Canadian provinces except PEI by the Efficient Civics Guild. It is based on STV+C scheme but adds a small number of proportional members to compensate for:
  • variances in member per vote caused by setting strict stable bioregion borders and never adjusting them
  • inherent failures of Single Transferable Vote to guarantee that minor parties are represented at all or independent candidates have any chance to be elected

The number of such proportional members is typically a minimum of 10% of the overall legislature, though it can be varied upwards, it is harder to vary downwards.

The variant B5AV+C+P replaces Single Transferable Vote ranking with five points "plus or minus" can be assigned to any candidate or party on the ballot. This better separates expression of tolerances versus preferences but is far less familiar to voters than the well-known STV schemes.

The main advantages of BSTV+C+P over other schemes are:

The BSTV+C+P proposal was prepared to influence the Nova Scotia and Ontario electoral reform process and to provide an alternative to British Columbia that would break the impasse there after the BC-STV scheme failed to achieve 60% support in part for failure to address concerns of some minor parties.