Having trouble reducing the vibrations on my turntable setup

MC, Nodes for vibration should not move around.  However, the number of them might go up or down depending upon frequency.

Hi again Miller

"Springs bounce and resonate. Townshend controls this with an ingenious air resistance damper."

You get it now?  Too true pal.  Why use springs if have to be damped?

Lostbear:  "What is the butcher's block standing on?"   +1

As OP has discovered, a butcher's block doesn't have sufficient weight on its own to damp vibration.
OP, if you go mass loading, make sure you have enough mass.  Stand the block on something big and heavy.  And make sure it's not all standing on a bouncy floor.
If your arrangement doesn't allow a solid floor then you will have to compromise using isolation pads or the like.  But you will still get some vibration transmission.

@arjunm , You really only have two good, sure fire ways around this problem. 1st is a MinusK platform. 2nd is getting a fully isolated , suspended turntable like the SOTA, SME, Basis, Oracle, or Dohmann. 
Other less effective solutions exist but if a device does not ask for or accommodate the weight of your turntable forget it. It will not work. To isolate the turntable it has to be suspended by springs with a resonance frequency below 3 Hz. In order to tune the suspension correctly the weight of your turntable needs to be known. The Master Solution is an expensive turntable and would warrant the price of a MinusK platform. They make a low profile one now about $5000. Just a warning, things are going to get a bit bouncy. You get use to it. I will make a significant improvement in sound. Once on the platform absolutely nothing will bother the turntable including jumping up and down and kicking the stand. 

@arjunm , https://www.minusk.com/products/ct2-ultra-thin-low-height-vibration-isolation-platform.html

How about the Vibraplane which has been proven one of the best isolation devices for many many years. Yes there are newer devices that isolate slightly lower in frequency but at significantly more $$$$ YMMV