Originally Posted by Retro Grouch

I'm betting that only half of the spokes are too long.

It's fairly common to get the cross pattern right on both sides but to have the two sides off by one spoke hole. When that happens you'll get a pattern going around the rim of 2 long spokes followed by 2 short spokes. Don't ask me how I know, but I've seen it happen more than just once. If that's the case, you'll have to unlace and redo at lease one of the flanges.

"Good judgement comes from experience and experience comes from bad judgement." Mark Twain. one of my favorite Missourians.