Thoughts on Drum to Disc Conversions…

The type of brake really has little to do with braking power.
Its about how they are set up in relation to the weight, and for most people, the built in anti-lock assist can make a big difference.
Servo assisted drums need the understanding and experience to use effectively. They can not be applied digitally.
Disks, if properly sized, can have an advantage in leverage only with wheels that so allow.
Otherwise the main advantage is heat dissapation. This means a they should be able to handle a wider range of situaions before the lining gets out of its best working zone.

The Ford SHO came with front disks that were not properly sized for those cars. Certain Scooboos have a rep for inadequate disk brakes - even for autocrossing - which is really not that hard on brakes.