The problem is an operator problem..................it should NOT take any L/M system 4-5 hours to dry. As far as the suite's concerned, sounds like the operator had a vacuum hose leak / tank not secured properly, or similar.
The machines they use, are good machines and well proven, so the operator, as is often the case, is at fault !!!
I never criticise C/D just assure prospects that I will achieve as good as, or better results than them.
robert m