Well technically I can get it for less cost...unfortunately it's the shipping from the US that puts a hole in the plan. The VTF3 MK4 from HSU seems like it would make a pretty good difference but I just hate wasting dollars just for shipping and duties. I guess I would really have to check with them for the total cost.

Any idea how the ep500 compares to my STF 3?

I would prefer to do without the base shakers and adding extra wiring. I'd like to try to keep things clean and simple. Plus less wiring is less likey that my two dogs will get at them.