Just received a set of Silencers. I have a question about the pole spacing which is 48mm for both. Is this the way they are supposed to be? I assumed that they would be different spacing for neck and bridge, like 49mm and 52mm. Even that they would be 50mm each. I would prefer 49mm for the neck but 48mm is fine. But for the bridge?! 48mm?! 52mm is good, 50mm is acceptable, but 48mm spacing seems very, very odd!