So unfortunately no real conclusion - the NVH and Redline shockproof seem to have mixed success. Of course "noisy" is subjective and with the BB mounted on what is in effect an aluminium sounding board it's never likely to be quiet.
With Mark Evans active on the other Bevel Box thread we may get some more insight and comments.
It will be interesting to hear from Garage56 how their investigations are getting on.
For me, I'm thinking of giving the Miller EP140 a go as Dab of Oppo and Atlanta83 have had good experience with this.