I have nothing against the other companies or models either, but Yamaha Bkk & Cnx approached me to help / get some feedback.
I'm open to the other companies, but as yet they haven't asked me & I haven't approached them.
The Yamaha one will only work if they contribute something. Let's hope they do. There should be a charity caravan ride to Doi Inthanon coming up next month I think, so let's wait & see if we get the info.