i PM'ed you this on another forum, but i will mention it here as well.
for CGD (commercial glue-down carpet) in a commercial setting, that idea works, because with encap, we dont need dwell time.
but in the resi arena, it just doesn't work. unless you are encap'ing resi with a product like Encap Clean, 99% of the other presprays we all use (like Punch for me) NEED dwell time.
just some food for thought for anyone considering using these OP's with on-board sprayers in homes if you are, i recommend sticking with an OP that does NOT have an on-board spray system, and buy something like a Multisprayer for applying prespray.