Just a thought but if you have a tire shop locally that road force balance the tires and rims it may help to at least eliminate some problems. Road force balancing can give a value as to how far out of round the tire, if the value is to high you will get a vibration typically at higher speeds. Secondly like posted running lower tire in the rear can help greatly, now this being said the people with TPMS will have to get that worked out with the dealer so you dont have your tire light on the dash all the time.
I just ran into this issue earlier this when I put rims and tire on my 07 classic. I had vibration from 50-57 and 68- roughly 90. Didnt matter how many times they balanced the tires it was still there. Finally I noticed their tire machines could do road force balancing, so they did and the truck rides 10 times better.
From Wiki:
Force variation background
The circumference of the tire can be modeled as a series of very small spring elements whose spring constants vary according to manufacturing conditions. These spring elements are compressed as they enter the road contact area, and recover as they exit the footprint. Variation in the spring constants in both radial and lateral directions cause variations in the compressive and restorative forces as the tire rotates. Given a perfect tire, running on a perfectly smooth roadway, the force exerted between the car and the tire will be constant. However, a normally manufactured tire running on a perfectly smooth roadway will exert a varying force into the vehicle that will repeat every rotation of the tire. This variation is the source of various ride disturbances. Both tire and car makers seek to reduce such disturbances in order to improve the dynamic performance of the vehicle.
Radial runout
Radial Runout (RRO) describes the deviation of the tire’s roundness from a perfect circle. RRO can be expressed as the peak-to-peak value as well as harmonic values. RRO imparts an excitation into the vehicle in a manner similar to radial force variation. RRO is most often measured near the tire’s centerline, although some tire makers have adopted measurement of RRO at three positions: left shoulder, center, and right shoulder.
Lateral runout
Lateral Runout (LRO) describes the deviation of the tire’s sidewall from a perfect plane. LRO can be expressed as the peak-to-peak value as well as harmonic values. LRO imparts an excitation into the vehicle in a manner similar to lateral force variation. LRO is most often measured in the upper sidewall, near the tread shoulder.