Dunno if this should be in pickups, but here goes... I have had a Thumb BO (2000 model) for a couple of years now with no problems. I have just added to the Warwick collection with the purchase of a new Corvette Standard active fretless. I understand that these two instruments have exactly the same electronics, MEC active J/J. The new Corvette appears to be much noisier. Its the sort of pickup hum that disappears when you turn 90 degrees away from the amp. The Thumb has no such problems. Would this be a shielding problem, or something else? PS I have sent this message to Warwick, but I am still awaiting a response.