Re: IBZ LO-PRO EDGE versus the newer bridge
All these talk about the Edge Pro being inferior is ridiculous. With the exception of the locking studs, the Edge Pro, Edge, and Lo-Pro Edge are equal.
Hell, I would even go as far as saying Edge Pro being the superior one overall due to the streamlined design.
Mine flutters perfectly fine and even without the locking studs, it is extremely stable and solid. Of course it will be even better with the studs but I can live without it.
As for durability, even with three years of abuse (gigs, recording, jamming, the constant tinkering) the knife edges haven't shown a single sign of being worn.