There were actually a few surprising names inducted into the Hall of Fame. I only made a few adjustments to the election process. Probably the biggest one was that I initially set the service years requirement at 5 years in hopes of getting some of the early year players who played much shorter schedules and so who might legit take four seasons to add up to the number of service days that constitute a "year."
...And then I never switched it. I also had the threshold for being dropped off the ballot set at 0% for a while, then to 2%, and finally 5. I allowed for 20 votes per ballot, and kept guys on the ballot for 15 years. And I made guys eligible immediately after retirement, which I generally like to do because it's more likely they'll be inducted wearing a uniform that they actually wore in life.
So my nominee for the most surprising Hall of Fame inductee:
He played until age 45 and finished in the top 10 in home runs for catchers. But the real guy had a SLG of .461, so I dunno. Maybe he got hurt in real life, but avoided major injury in the game?
And if you're looking at 1997, when he played 161 games - only one of those games was as a catcher. The '97 Pirates used him at first base 147 times, and then in the outfield.