Is smooth leather too smooth for pasting?

[Pedigree]

I have a modular paddle strop setup (Supex 77) for touching up with pastes and just added a 0.1 miccron iron oxide paste to my arsenal. All of my pasted strop beds are finely or coarsely napped and I have 1 English bridle strop bed to keep plain for final stropping. I recently acquired a premium calf leather strop bed and was planning to paste it with the 0.1 red iron oxide, would this smooth a leather be fine and ideal to use with the iron oxide or should I use a napped leather instead?