No, but I recommend you to invest on ultra 5 on speakers first
Get ultra SS for the oppo
I'm using new spikes made for the Devore "i"Silverbacks. They are voiced together. I read that using different spikes on Devore speakers will alter the sound signature. So, I'm leaving the speakers alone.
We have not experienced any negative results using Ultra 5s under lightweight components. We have, however, experienced even better results with lightweight components when the Ultra SS or 5s under the component are used in conjunction with an LPI on top of the chassis. I use lightweight OTL components in my system and both perform very well with Ultra SS/Ultra Bases under the components and an LPI on top of each. If the component is heavy enough (5 - 10 lbs) the component weight should successfully 'load' the technology pockets of our products. In that case you wouldn't necessarily need to use an LPI on top, though you would only know by listening to determine best performance.
John
I will look into the LPI as well. My only concern is that adding Stillpoints will make the sound brighter (like Finite Elemente and other metal footers).