Belt tension S2R 800 definitive?

Hi,
Regarding the belt tension on my Monster (S2R800) I am a little confused.
I am going to change the belts soon, they are sat on the bench poised for installation, but I have conflicting advice on the correct tension.
Specifically, I have no less than FOUR separate bits of advice for the same thing.
1) 160hz/145hz (Downloaded Ducati S2R 800 manual).
2) 110hz/110hz (forum gossip)
3) 5mm go / 6mm no go Horizontal cylinder, 6mm go /7mm no go vertical cylinder (you tube ducati service)
4) 5mm go / 6mm no go for both cylinders (you tube Ducati service)
Now. The forum gossip has mentioned that the original 145hz/160hz resulted in siezed tension rollers hence recommendations for setting both to 110hz.
The Old method (allen keys) seems to have been used for years, and one method differentiates between the Horizontal (cooler) and hotter vertical cylinder. Which is right?
Do I download a tuner program or app and trust that it's accurate enough?

Can anyone shed some light on the situation and confirm the definitive method???????????