"IF" you had the peace of mind to do it when the A/C has touched down on a surface that you suspect 'may' cause a nose wheel failure then as soon as you get the mains on the ground unlock the canopy & slide it back even partly just in case. Am informed Pax could do this for you under your instructions. Just a thought is all?
I'd never own a nose wheel version of a Vans, I've seen the results of one that flipped at my local field on smooth grass, no thanks!