It's Disappointing when....

you realize that something you have always done, doesn't work with the new direction you're heading.
I have always kept my track spacing towards the minimum. It looked better to me. I never had a problem with this arrangement, until now. I am going add signaling down the road and I was doing all the prep work needed as I was laying track, or so I thought. During phase 1 I built two towns and a yard with 2" spacing, which worked fine, until I decided that I would rather have code 83 and use all my code 100 for staging. While I was changing out this track and turnouts a brick hit me in the head (figuratively speaking) and I realized I hadn't allowed the track separation for signals. There was a short scramble to find out what my options were and now I'm in the process of changing the track spacing in the yard. The other town might have to be different because the track is glued down.
I also made two staging yards at 2" spacing. I will be changing the spacing on the return tracks so I can get signals installed on those. The other eight tracks won't get signals. The last town I was working on in Phase two had a wider spacing just due to dumb luck. It should be OK.
From here on out the track spacing will be correct. Time will tell what other surprise will come up and bite me.