Two risks I'm aware of - one is overheating the resin material(and the bore-thrus require longer heating time due to the longer insertion), and two, what I've seen more often, is the re-prepping the shaft tip cutting breaking some of the glass reinforcing material. Twice, I've also seen cracks in the shaft tip (when looking very closely), which was causing the heads to keep slipping back off. Personally, I would say your risk is low (but not zero) for just one shaft pull.
Just curious, what benefits are you looking for in an expensive shaft that can't be found in a more moderately priced shaft?