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High action on A string?

I have a pretty good bit of jbass fenders & do all my own setups, I've noticed on ever bass you have to put the a string action the highest to get the buzz out. Why is this? I know you are matching the radius of the board but it seems like it would be lower.
 
I have a pretty good bit of jbass fenders & do all my own setups, I've noticed on ever bass you have to put the a string action the highest to get the buzz out. Why is this? I know you are matching the radius of the board but it seems like it would be lower.

Are you judging this by feel, visual assessment of the bridge saddle profile, or by pocket rule at the 12th fret on all 4 strings?

Riis
 
The actual physical height of the saddle itself. Makes sense it's always the highest since just after A is where the radius drops so then E is lower even know its a much thicker string.

Sounds like a near-normal saddle profile to me. All you need to do is verify relief and individual string height. You'll probably find you're closer than you think. Case in point: dropping and addt'l .002" of relief into a good set-up can sometimes make it a great set-up.

Riis
 
Yep, def normal. When I do a setup I go by the book on truss relief & nut slot height but wen it comes to saddle height I go as low as possible without any buzzing not sure if that plays into what I'm seeing. Also for the record these basses play super fast with very low action. No buzzing, mushy action or fret buzz.
 
Yep, def normal. When I do a setup I go by the book on truss relief & nut slot height but wen it comes to saddle height I go as low as possible without any buzzing not sure if that plays into what I'm seeing. Also for the record these basses play super fast with very low action. No buzzing, mushy action or fret buzz.

If you pulled this off as above, you're way ahead in the game. Don't mess with success!

Riis