Intonation - duff string?

[paul h]

In twenty plus years of playing I have never failed to set the intonation on a bass however I just put some new steel strings on my P bass copy and I am struggling with the D string. The open string and harmonic at the 12th fret are spot on but it is flat on the fretted 12th. I have adjusted the bridge accordingly but before the fretted 12th is correct the harmonic is shifting. Also I have the saddle almost to the end of the adjustment screw to get it as close as it is.

Is it possible for a duff string to cause intonation problems?

[Pete Academy]

It's quite possible. I've known this before.

[paul h]

I thought it might be the case, it's just that I have never experienced it before. Think I will email the supplier and see if I can blag a D string!

[paul h]

I emailed the ebay seller I got the strings from and they are sending out a replacement. Excellent service that deserves a name drop...

[url="http://myworld.ebay.co.uk/robertsguitars_uk/"]robertsguitars-_uk[/url]

I am sure that name is well known here. £8.99 for some quality stainless steel strings and a brilliant service.

[Dom in Dorset]

I had the same problem with the G on one of mine, I put it down to the light strings I was using. I changed to a heavier set and it's fixed, could have
been the change of string that did it anyway regardless of gauge.

[Mr Fudge]

This happened to me about 6 months ago. I thought something was drastically wrong with my neck/set up. Replaced the (new) string and everything was fine. Very strange.