Most of the test equipment I use for product development and testing are imbalanced with some cpoments on the heavy side and some on the lighter side. Sometimes I think there's a bit too much concern about weight, but the question is always relevamt and a good one to revisit.
I get concerned when a component is tiny and light, like an Ifi DAC. For this, i balance the DAC on 2 CS2M 1.0s. When I play Bluetooth through my phone, I put the phone on a single CS2M 1.5. There's a clearly audible improvement in sound in both cases.....it's overkill; certainly not a "gotta do".
I think the feet are fine for a 19lb component of substantial dimension like yours. I remain in the camp of please don’t use weights. The problem is the tendency for a certain "hardness" to develop after a week or two. Because of the delay in this audible evolution, there's a possibility we forget the root cause and take off on a tangent looking for a cure to a "new problem". Been there, done that, toured with the band, got kicked off the bus, found religion, went into rehab recovered and don't do it anymore.
I hope this helps.
