Hello, a bit of a newbie trying to figure out a mini-RTW via Aeroplan.

When I use the MPM feature on KVS, the mileage numbers are different than two online MPM calculators. Keeping in mind the 5% overage Aeroplan allows I can't fit in the stopover I wanted but could if using the other calculators.

Are the KVS numbers the one I should be going by or is there an online industry standard out there. I don't want to get everything together to book and find out that I'm either over my MPM or rather short and could have fit another leg in. Thanks!