gyro...?
I agree with Robby for the most part. I've never seen a Stearman that couldn't be tamed with some simple mechanical tweaks. It just isn't a hard plane to fly.
Yes, there are aircraft where using gyros is prudent. This isn't one of them. Unless you really like it boring.
And, it's "Squirrelly", for those who needed to know.... Not that Webster probably has that one...