I also am flying a TT 120, I have installed a pitts muffler with smoke. This is my first plane of this size and I have found it a bit challenging. I have encountered a vibration problem that I have not experienced with my smaller planes. I have balanced both my props and spinner, and I still have
Loose or missing hardware after a few flights. Do larger engines really produce that much more vibration? Maybe a rubber mount would be in order for this plane. My SFG’s are getting torn up on our grass runway, I think I will strip the covering off of them and I will laminate some carbon fiber on them. That should keep them strait and get them stronger. Anybody have a prop size recommendation for the TT 120? Also I have replaced the CA hinges on the Ailerons with Robart Pinned hinges cause the CA ones were spliting[

] please keep an eye on the condition of your CA hinges!!
Thanks,
Gerry
[8D]