What booster to go with?

[Malibu 361]

Should I get a single or dual diaphram?Thanks

 

[WhiteTrash79MC]

My bu i had was a single and the brakes were nice and firm, tho not too firm. Seemed to stop the car just fine. My MC has the dual and can stop with ALOT less effort tho I have to be careful in the rain as to not lock the front wheels.
That being said if you don't plan to drive in rain or can adapt to finessing the pedal go for the dual IMO