Lenco-Drive Puke/Overflow/Catch Question

quick question... with a lenco-drive is it ok to route the overflow/puke/catch line into the top of the main puke tank (for the engine) on the car? was considering putting it into the top of our main puke tank rather than have multiple tanks to drain but at one point was told that the lenco-drives can draw fluid back into the unit. would it matter if the lenco-drive line was vented into the upper/open air part of the main puke tank?

hope my question makes sense

 

lenco drive can

mount a seperate tank for the lenco drive, the hose goes in the bottom of that can, the fluid drains back into the trans on cool down, the can must be mounted higher than the vent outlet on the lenco drive, hose should have no loop or ups and downs in it ! it must be pitched back to the tranny. it works fine with its own puke tank..