Isolation Cones vs Cheap Cables

Just spoke to rep at Music Direct.  He pointed me toward the ISOACOUSTICS Gaia https://isoacoustics.com/products/gaia-series/$200 - $600 per speaker.  Imagine that!   I'd might consider those for speakers but for the other components the BDR cones seem to be cost effective assuming they have a positive impact.

Anyway, can anyone offer some real world experiences of the two versions, the MK3 versus MK4 under different components?  I have a tube integrated amp and phono stage ad VPI Classic Signature turntable.   I'm not really worried about my DAC or CD player.  I use them for convenience.    My real listening sessions are on vinyl. 

Thanks for the pics! Actually, I looked at your speakers via another post about cones and before I created the thread... I make an attempt to do my due diligence, .... I just couldn’t make out whether you used 3 or 4. My common sense (which at times, doesn’t work) told me that speakers gotta use four, I just needed some confirmation!
Yea, and they are on sale at Music Direct for $16 per cone.
Very sweet setup, by the way!

For the time being I was going to slide 4 rubber discs, one under each corner then listen again to some of my more disappointing CD’s with veiled vocals or compressed sonics to trust if I can detect any change in the sound quality.

I"m not sure why you would use an inferior recording when determining the value or impact a "tweek" might have on sonic quality of that recording.  In my case, I use an outstanding pressing of a piece of music I know very well.  I wouldn't think any tweek will make a poor recording's sound better!  As the saying goes, crap in, crap out.  Tweeks just might accentuate the crap in those disappointing CD's!

I appreciate all the responses and options.  As usual, lot's of ways to skin a cat! 

Millercarbon, what are you using as Round Things?  I notice you have the the words capitalized.  Is "Round Thing" a brand?  My google of the term couldn't find anything specific to a brand.  What are they and what additional purpose do they serve, isolation redundancy and additional stabilization and balancing of the component? 

I am certainly a neophyte in this arena but am enjoying the journey and absorbing as much info as I can!  I think I'm making up for lost time.  I was a self proclaimed audiophile in my teens, as much as one could be who didn't own a sound system but had a subscription to Stereo Review!  Ha!   I listened to my older brother's system.  Eventually, when in college, I used my tuition money to buy a Realistic STA 95, Realistic monitors, Realistic cassette deck and a Kenwood DD turntable.  I was in heaven but needless to say, my parents weren't very happy with me!  I still own the turntable!  I wish I still owned the Receiver, for I'd display it as a piece of mid century industrial design art!   I got into home theater sound-surround in 1995 and as far as listening to music, it was nothing but background distraction when I was working or in a car! 

This past March I got the hankering to hook up my turntable.  I quickly went down the rabbit hole and here I am.  Aside from a new system I converted our sun room into a listening room and yea, I even bought a couple of White Hot Stampers!  Next are power cords and room treatments.  Does it ever end? 

I think I just hijack my own thread?  Sorry.