Could you please send me a link to the Pahoehoes that you use? The Thundergutz, at least in my experience, are a bit too temperamental.On my 23" MicroBass, I use the 20-21" not the 22-24" because of how much Pahoehoes stretch. I carefully stretch them to the point where they're close to tune and wrap them, check the tuning and adjust. I've done it so many times now, I'm getting a good eye on how much to stretch them the first time around. I find they will settle in about a month or so and stay in tune through most of the hour rehearsal and the half to an hour gigs we do.