Loading Bike on trailer

[Robbie8666]

I've got to take my bike home to Cornwall from Portsmout area on a trailer, some freinds of ours are kindly lending me a 3 bike trailer so i'll put it in the middle slot.

the question is, after hearing on here about damage caused when recovery people have fastened bikes down and bee a total novice, any advice of where to attach the straps to will be very gratefully recieved.

thanks

Robbie