Rail lengths for new Revo 13

I want to mount YakAttack GT175 rails on the side rails at the cockpit area and GT90 on the rail sections behind the seat. The two boats are on order so I don't have one handy to measure. I am guessing that at the front a 16" GT175 will fit and at the back a 12" GT90 will fit.

I could use a shorter sections but would like to have as much in the way of placement options for mounts. Has anyone had any problems with mounting these rails on their Revo 13?

The 175's don't fit very well  on the revo. 

I figured as much based on people's comments about not being able to use all the mounting holes on the GT175 track. I bought the GT90 track in 16" lengths for our Revo 13's.

I was surprised when the GT90 rails arrived as in the pictures it looked like it would have a greater height than the GT175 rails. Actually the GT90 rails have a height of 0.41 inches and the GT175 track height is 0.50 inches.

I can see the value in using the GT175 track for short sections but the GT90 seems better for 12" or longer rail installs where the backing plate can be used effectively.