http://www.sportingcharts.com/nfl/stats/team-two-point-conversion-statistics/2015/
http://espn.go.com/nfl/statistics/team/_/stat/kicking/position/defense/seasontype/2
The stats are somewhat limited as far as 2 pt conversions go (Pitt was 5 for 5 and other teams showed great success) but why not forget about extra points next year?? Is a 30 yd field goal for 1 point really all that important?? Yes, I know, the Pats lost the AFC Championship game because they missed an extra point. But we missed approx 15% of our extra points this past season. I'd be interested to see if we would have won 1 or 2 more games if we had attempted 3 or 4 two pt conversions with 50% success rate in a few games (Eagles, Jags, Giants??)
Dan Carpenter may be a head case but he was clutch last year. I don't think we need to take up another roster spot With a kickoff specialist. Keep Carp for field goals and train Schultz to kick off like the kid in Indy (McAfee). In the off season, come up with 10 solid 2 pt conversion plays and forget about the extra points.
Just my opinion.