Speaker outriggers


I have a pair of B&W CDM9NT's and I am just using the brass spikes on them. I am using it on concrete floor with laminate flooring. I struggle sometimes to keep them balanced and find I have to add a washer in between the spike and bottom of the speaker cabinet of one or two spikes. I don't want to spend $500 or 600 on something like ISO acoustics GAIA. Has anyone added outriggers to floor standing speakers? I found these from Dayton Audio and they look pretty solid, 4mm steel bar that runs the whole width of the speaker. Anyone have experience with these or similar? https://www.parts-express.com/Dayton-Audio-OS-2M-Outrigger-Speaker-Spike-Set-Medium-with-Black-Steel-Base-2-Pcs-240-774
128x128jmphotography
Those will be worse in every way than whatever you have now. What will solve your problem and sound hugely batter are Townshend Podiums. Unfortunately you don't want to spend money, even though this will be like a whole speaker upgrade. Huge improvement. But not cheap. 

Cheap are Nobsound springs. Same $30 you are prepared to spend but miles better sonically, you will be surprised how much better. 

If cost is a factor though I have to wonder why you would bother. Your entire problem is using four cones on an uneven concrete floor. Why? Three points define a plane! Remove one, move another, use three instead of four. Problem solved.
@jmphotography ,
I take it your floor isn't level, hence the need to add a washer, is that correct?
If so, I would look at something at Herbie's, as it should be in your budget.
https://herbiesaudiolab.com/collections/loudspeaker-rack-decoupling-and-isolation
Actually, I would call them to get the best information on what you should get.

Though I will second Townshend Audio products, they are very effective, but very expensive. I use them on my components to great effect.
Bob