The green lawn hornet is the one I have - issue with reed valve so whistles when running and pain to start.
The grey versions are still the most common at the tip still - mostly clutched with primer, some clutchless
I like the clutchless ones as I can use the low down torque to carefully trim at 3000 rpm around the garden beds without worrying about clutch burnout.
My experience with the later model 25.4cc FC Ryobi from 2015 is similar to your experience with your tu26 - fuel efficient, smooth, and the only trimmer I have ever used that will consistently start first pull from a cold start
Last edited by Tyler; 19/02/20 12:49 AM.