DRE Techniques

When I was living in Jacksonville, Florida during the 80's, I happened to have a doctor who was likely of Cuban heritage. During an annual physical, it came time for my prostate check and I assumed the arms on the exam table position awaiting "normal" finger insertion and prostate "wave". It was therefor a surprise when all of a sudden, I felt what seemed to be a trio of fingers suddenly enter my rectum with enough force to get me almost light on my feet momentarily. The stretch on my sphincter definitely got my attention with some pain that subsided as the muscle accommodated the force and size of the invading fingers. After that, I walked around for three days before the ache eventually went away. Luckily there was no bleeding afterward and I don't seem to have had any lingering issues with it since.

Every prostate exam since that point has generally been a very mild insertion and a "one-wave" feel of the prostate looking for lumps. Last week I had a DRE by a urologist. While his insertion was nominal, he's the first to actually press down hard enough on my prostate to create a slight tingling at the end of my penis.

There seems to be a range of different techniques out there in the medical field for prostate examination. Have others noted different techniques being used with doctors of different training nationalities/medical school affiliation?