Strat wiring question

I have been trying to help my son with a strat project. He has put a mini humbucker in the bridge and hot single coils in the middle and neck. He put a 500k push-pull pot in for volume, 500k audio pots in for tone and has a standard strat 5-way selector. It seems that he has got the switching right on the push-pull pot but the volume pot is acting like a tone pot and the tone pots don't seem to have any effect. I have looked at the hook-up and I can't figure out why it is doing this unless it is related to the treble bleed caps. He used .022mfd caps on the tone pots and a .001mfd cap on the volume pot. All caps are connected lug 1 to ground. I have done several Tele's and have never run across this. Any ideas? Thanks in advance.

I have a Lonestar strat and it comes stock with the humbucker in the bridge position. Try and find the schematics of the wireing of this guitar and it may help you out. I know its out there somewhere in cyberspace.
Good luck.

Just thought of this....the Lonestar also features a dedicated tone control just for the humbucker. Love that feature.

the treble bleed cap should go from lug 1 to lug 2 of the volume pot. Some people also put a resistor in series or parallel with this cap. Good luck!

Hope this helps you out, ssmith.
http://www.fender.com/support/diagrams/pdf_temp1/stratocaster/0107900_02B/SD0107900_02BPg2.pdf

Thanks all. My son actually figured out the problem. I handed him the wrong cap while he was soldering or something like that and a .022 cap got stuck on the volume pot and .001's on the tone pots. He changed these around and it works beautifully and he thinks he's a master luthier now.