Looking for your opinion (bass shakers)

Hey Guys,

Im looking for opinions from people that have experience with bass shakers/tactile transducers.

Im only running a F-GT Lite (keep wife happy as i can hide it lol) but im wanting to add a little immersion with some diy bass shakers. Because it is a smaller tube sim rig i have been considering 2 options. One using dayton bst-2 and another with the tt25 pucks. 

#1.    2x bst-2 one front one under seat (not sure if this size would be to much for a small rig?)

#2.    4x tt25 pucks one for each wheel (dont know how much these put out and also worried since its a smaller/thinner rig i may not distinguish left to right vibrations anyway?) 

Any help is much appreciated and thanks in advance