Townshend platform under digital component or amplifier ?

I would appreciate suggestions from those who use and understand the importance of isolation as to where best to employ a Townshend platform which has a yellow rating so is suitable for components.  Please don't recommend spikes which are a mistake from the 80's    My speakers are DIY open baffle currently on Isoacoustics Gaia which I'm not that impressed with. Springs are the way to go but will have to be DIY due to a difficult layout.

The obvious thing would be to experiment, sure, but my rack is DIY with threaded rods which when adjusted will upset my cable management so where would I get the best reward?