Has anyone worn insoles or orthotics in Duo boots?

I emailed them for advice about which styles would work best, and here was the reply:

"We do not recommend wearing insoles in our boots. Insoles may damage the zip or the leather. Of course, all of this depends on the height of the sole. However, out of the boots you mentioned, the Avignon and Ravenna boots would be the best to wear with orthotics. These other styles might be worth having a look at: Orleans and Malmo."

I think I'm going to go ahead and order them and risk the damage, but I wondered what people's experience here has been like.