Henne has the stronger arm. The Miami Dolphins are able to air it out with him, as opposed to Pennington's underneath precision passes.
Or at least that's what I thought before ESPN Stats & Information slung some interesting data at me.
Turns out, the Dolphins haven't gone deep with any greater frequency since Henne took over as the starter in Week 4.
On passes that travel 15 or more yards downfield, Henne has tried exactly as often as Pennington did -- 20.3 percent of his attempts.
Pennington completed 7 of 15 deep passes (46.7 percent) for an average of 8.3 yards per attempt.
Henne has completed 21 of 61 deep passes (34.4 percent) for an average of 7.6 yards per attempt.
And that includes the fluke, 53-yard touchdown strike to Ted Ginn against the New York Jets in Week 5.
Yes, I'm calling it a stone fluke that Ginn burned Jets cornerback Darrelle Revis. With the way Revis and Ginn have otherwise performed this year, that play makes no sense.
Back to Henne ... Even though his downfield numbers are surprising compared to Pennington's, ESPN Stats & Information also shows Henne is getting better as the season progresses.
Through his first five games, Henne completed only 28.9 percent of his passes longer than 10 yards for 226 yards and a 38.7 passer rating.
In his next five games, he completed 49.2 percent for 544 yards and a 59.2 passer rating.