Waz, just surfaced from a manic day and read your post. Intonation on a 3 saddle tele especially where the saddles are not compensated is more of a compromise than anything else. I've found they are better intonated by ear than electronic tuning device.
An interesting read on the subject...
http://www.seymourduncan.com/blog/th...dge-intonation
If you cannot live with the compromised intonation the single saddle bridge will help immensely, I have such bridge on a modern flunder tele and its dead easy to intonate