I have a new idea , when the pollen sacs open , you can be vigilant and catch them , store in a wax paper or clean jar , then take the plants out of your grow room , put them in the tub like i sugested before , dust the plants you want to pollinate , leave some others alone in the tent , leave the pollinated ones in the tub and overnight spray with a mister
That way they will become fertilized , the water spray will halt all furthur pollination
Then put them back in the tent next day
That way you just pollinated half , or more or less of your plants and you can experoence all outcomes , some seeded , some just buds , any combination you like....