One of my most negatively memorable times from seminary was when a well-respected professor questions the legitimacy of a student's faith because he could neither remember the exact date of his "coming to Christ" nor could he describe it in dramatic detail like Saul's conversion in Acts 9. This particular student was foreign and not from a tradition so highly-influenced by American revivalism as the seminary where I studied. I simultaneously felt embarrassed for the student and angry at this professor for having the audacity to question another believer's faith because of these trivialities. I wish I had these words so eloquently prepared that day:

Some interpreters treat Saul's experience as a model for Christian conversion, as though every person has to experience a crisis in order to become a Christian. This is misleading. Though God can and does work in people's lives through crises, conversion is always the work of the Holy Spirit through the means of grace... Let no one question your salvation because you came to faith quietly, without some dramatic experience. What matters is trust in Jesus as the Savior , which is truly what made Saul a Christian.
The Lutheran Study Bible, note on Acts 9.3-9 (emphasis mine)

That conversion results in dramatic change to thought, word, and deed is a given. That conversion necessitates a 'Damascus road experience' is foreign to the Gospel.