Our pump sizes are pretty big and dosed according to weight. The pump size allows better delivery of the actives across a larger surface area. Something alot of companies miss. Using two products at the same time could be problematic.
I'd suggest picking either for an AM application and the other pre-bed. Both preferably after showering. Sustain I enjoy best in the morning, but the 7,8 benzo's anti-anxiolytic effect could help with sleep.
Transdermals have a slower release over 24 hours, so I see no need to dose pre workout.