Thanks,
I´ve been searching myself deeper into this. I need the plane´s POH to have the towing operation described into it, and the Decathlon´s (8KCAB) POH doesn´t. The installation of a tow hook is approved and the airplane will be airworthy with it, but then, if I want to use that hook... I CAN´T!!
I can do it with the other models, 7GCBC, 7GCAA and 8GCBC (not sure about the 7ECA, but it´s 115HP, so I don´t care

) as there is a part in their respective POH´s saying how one should tow with them, but unfortunatelly there are not many around Europe to choose from... in fact, two talking about the actual Europe and 4 if we consider Turkey as part of the continent.
Regarding the banners/gliders towing, I´m doing both, being the banners the main business. I´ve seen a 7GCBC (150HP) towing gliders for years, but I´ve no idea if they were performing an overhaul every 2 hours on it
Thanks again, and if anybody knows of a Decathlon´s POH talking about towing anything, you can make a happy boy of me!!!!!!!
Thanks once again.