I have narrowed it down to Airflex storm, and aiflex hx compact, had prices for these waiting on a price tomorrow for Ashbys Enforcer, can any one tell what the airflex compact run time would be with the smaller waste tank, I am considering this because my van has a false floor for carpets and is 94cm from the ground to the floor. there,s hardly any difference in the 2 prices of the airflex,s