The value of Program Change goes from 0-127. Making additional copies, and changing the display value does not change the underlying value that is sent. I see that the Microfreak has 384 presets. I do not see any mention in the manual of how they address the additional presets, but the standard approach is with a Bank change. I would try Bank 0 PC 0 for the first preset, Bank 1 PC 0 for the 128th preset, etc.