Bush Master or Force Flowering Vs. Nature

These plants (6 White Widow/5 Casey Jones oaksterdamn clones) are about 6 weeks old. Ever since I started using Age Old veg nutes and Earth Juice Catalyst they have grown close to 12 inches every 8-10 days.

Since they're about 4ft and very much still vegging I'm debating as to whether or not to use Bush Master, force flower, or just let nature take it's course.

The fence behind there is about 8ft and it's important that I stay below it. Any input and suggestions would be hugely appreciated.

This is my first grow

I say use the bush master and let nature do its thing

bush master rocks my room

And if it gets close to the top of the fence than you could always supercrop or LST your plant to maintain the height at a good level for you

is the smell going to stay below that 8' fence too? >.>