Also odd non Vandersteen owners take issue with his listening and measurements…of springs… all are free to listen and decide for themselves…If you're refering to me, for the record I have no issue with Vandersteen's listening or measurements.
I haven't seen the measurements, nor would I dispute a person's personal preference.
Again I have "no idea" why spring isolation would be less effective with Vandersteen speakers. Others have postulated reasons.