Beave:
I must say I'm jealous..... after seeing the video of the Tucano flying in the Jet World Master, it is clear to me that the SPT-10 is a great choice for the Tucano.
Before buying the SPT-5 I talked with my local Comp-Arf dealer and this was the response that I got from the factory.
"The JetCat SPT10 is too powerful for the Tucano, we clearly would not recommend it"
Clearly they were not right and I regret following their advice..... both for the Tucano and Marchetti.