I don't get this.

[Salamenster]

Hello.

I've putten some flats on my J. Now I have the feeling there's too much tension on the neck. I've read the Fender setupguide, wich was suggested in the sticky thread, but that didn't help me much as I'm not a native English speaker.

There are some things I don't understand (from Invalid Link Removed

-What is meant with "Affix a capo at the first fret and depress the fourth string at the last fret."?
-What's (my) neck radius (I play a Vintage by Wilkinson J-copy)?
-With 'Relief', they mean the size of the gap (Is it also possible to measure it with a ruler or something)?

Please help me out.

Thanks.

 

[hdracer]

Use a guitar capo on the first fret and hold down the "E" string at the last fret and measure the string height at the 7th to 9th frets.
You can use a machines rule or better yet use a automotive feeler gauges. When you have the relief set remove the capo and check your string height at the last frets and adjust your saddles to what you prefer.

 

[darkstorm]

Flats generally are higher tension then rounds.

 

[JTE]

See below in red...

Hello.

I've putten some flats on my J. Now I have the feeling there's too much tension on the neck. I've read the Fender setupguide, wich was suggested in the sticky thread, but that didn't help me much as I'm not a native English speaker.

There are some things I don't understand (from Invalid Link Removed

-What is meant with "Affix a capo at the first fret and depress the fourth string at the last fret."?Put a capo at the first fret, and fret the E string at the last or highest fret. This makes a handy straight-edge to measure the relief in the neck
-What's (my) neck radius (I play a Vintage by Wilkinson J-copy)?I don't know, but you can either contact the manufacturer or get a set of radius gauges and measure it.
-With 'Relief', they mean the size of the gap (Is it also possible to measure it with a ruler or something)?Yep, you measure from the bottom of the E string (while it's stopped at both the first and last frets as in your first question) and the top of a fret in the middle of the area the truss rod works on. I use the 7th fret.

Please help me out.

Thanks.