There was a ton of stuff in the HR design thread and also a load of stuff in the LP build thread I did. You can find links to those are in the thread in my sig. There is also a load of stuff on pickup winders that JCH and myself have exchanged here some where. Start on my build threads and JCH will chip in with more precise stuff...
Start here....
There is a bunch of stuff on the pickup design burried before this post but you can rewind to that if you want...
and here...
JCH will be able to link to his stuff which may well be more informative.... I'm a wood butcher not a pickup designer...
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You will need to scroll though a lot of crap in the HR build thread to get to the glory bits..