I'm hoping to wind a P90 pickup sometime soon and I'm in "research mode". WRT bobbins, are there advantages ( or disadvantages ) to plain plastic bobbins, fiberboard bobbins with separate spacer shims, bobbins with eyelet holes, 50mm bobbins, etc.? I'm liking the eyelet variety with the idea that the eyelet provides a place to solder the ends of the coil wire and then the leads, in the style of a Fender pickup. But it seems that P90 bobbins with eyelets are a new development? Separate spacers might allow for a taller coil perhaps. Or the use of a ferrous spacer ( or not ). Does anyone have thoughts to share? Thanks.