I applied to DPMS but had an MCAT composite that was not in the narrow range of scores required by DPMS, so I did MSP and IMS. There is cross-talk amongst the groups as DPMS students take classes with IMS and MSP. The only tension you will have as a DPMS student is trying to maintain a 3.0. As far as the 24 MCAT thing here is the requirement to get into drexel med as a DPMS student:
In order to retain final acceptance with the college of medicine, students are required to have at least a 3.00 GPA, a minimum 8 on the Physical and the Biological Sciences and 7 on the Verbal Reasoning sections of the MCAT, satisfactory participation in the Academic Assessment and Counseling Enrichment Sessions, and a Program recommendation
So if you have met this requirement already you are not eligible for DPMS. I had met the minimum MCAT requirement and was not a candidate. You can have a 24 with 9 bio 9 phys 6 verb (total 24) and be eligible. Again, i'm sure there is flexibility and perhaps some exceptions are made but I wouldn't bank on it.