I know Jonny at Audio Origami wasn't completely anti the stock Mk5 arm and he believed the foam fill would help address some of the resonance issues.
The bottom line is that you can tweak it a bit to improve things to a point, but eventually you run into the 'Max Power' situation where getting your Astra to perform anything like a Porsche will cost as much (or more) than just buying the real thing....
That's why I'm saving the money from a KAB damping trough and custom counter weight towards the Terminator arm I ultimately want.
Steve aka 'Twelvebears' (it's a long story)
System: Technics 1210 Mk5, Jelco 750 arm, AT33EV via MF X-LP2 Phono Stage, Oyaide mat and record clamp. SB Touch via Marantz PM-11S1 amp and Wilson Benesch A.C.T. speakers. Mark Grant cables and PS Audio Power Plant Premier mains regenerator.
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