Howdy all. My son Kaleb (16) started using a Palmonetic LTV950 at night a little over a month ago but we seem to be having difficulties getting the right settings or him used to it. He used a bi-pap about 5 yrs ago but stopped using it after his spinal surgery. Guess the rods sat him up straight and opened him up. Is there a vent that most would recommend for boys with DMD? Kaleb feels like the LTV 950 is forcing him to breath and I am concerned it could have an adverse affect more than help him. Any input would be welcomed.