Re: Stability?
Wait and see the results - I have a feeling they are certainly on to something here. I dont think there are many areas of turbulence in the stratosphere to worry about. OK noctoluminescent clouds show waves and stuff but if you watch them for as long as you can they are pretty stable and dont seem to move fast enough to be of any concern - FFS even I can take a smooth video of someone across the pub after 15 pints holding a phone by the edges so I can imagine a 2.5m scope with NASA tech on it is going to miss a photon of its target unless a meteorite or bloody space tourist gets in the way.