I did it. So did 8 or 9 of my classmates.
If you want to go into an allo residency then it is better to go to an allo school. However no matter where you go, your BOARD SCORES will weed you out of the mix.
If you wish to go into subspecialty surgery:Go allo.
Gen surg at a large academic center is DIFFICULT for a DO to land unless he/she
oes an audition there or at another large academic center and KICKS TAIL. Community allo surgery is not nearly as difficult.
Radiology: I dunno. I'm sure its easier if you go to an allo school but I'm not sure if DO's are dismissed just because they went allo. Again, I recommend doing an away rotation somewhere fairly well recognized, or in your area of desire, and DO WELL.
See a theme here? Its mainly up to the individual. However I really recommend allo if you have ANY THOUGHT of entertaining subspecialty surgery.