As mentioned here , tried out the natural/anatomic Inov8 insoles. I recently got the 6mm models and they are amazing! When I compare them with the Altra insoles, they are of course 1mm thicker than than the contour footbeds (and 2mm thicker than the strengthening footbeds), but they are also more dense and give a very controllable feeling.
I cut them to the same profile as the Altra strengthened footbed and used them for a few runs in the Altra Torin 1.5. As you can see the have a few groves on the bottom and that should help out with water drainage.
I am very very pleased with the 6mm anatomic footbeds by Inov-8 and I will bulk order them soon to exchange the insoles of *all* my Altra shoes!