Timothy Walters Kleinert
Also on the Shleip paper, I'm pretty sure he doesn't address control because he didn't actually study living individuals. I'm pretty sure he simply studied samples of fascial tissue under a microscope. As such, the paper discusses how he got the tissue to contract in the lab, but that does not directly show how the process works in the body.
Oh, and one thing about that, I realize that it was not in vivo but there is much to be observed in excised tissue. For instance, Cady mentioned neurons in fascia-- maybe that was a misspeak, but that's why I piped up. And of course we aren't talking about sensory neurons (though they are HUGELY important I am sure) right now, because the question is regarding conscious control of contraction.
You don't need to a living behaving animal to address this question: if there are contractile cells in fascia, do they or do they not make synapses with neurons? Neurons aren't hard to find, so if you were to report on the presence of myofibroblasts but not nearby axon terminals, it does suggest that you didn't see them associating in your samples.