Quick question if you shoot three fingers under do you lower your nock or raise it, from original bowers recommendations?

I have to raise mine.

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Lyle

Just move it to where it shoot the best.

Depends on if bow was positive tillered and how much or not. But when shooting a bow tillered for split fingers you would raise the nock to shoot it 3 under.

All my bows end up being about 9/16 - 5/8 above center and is based on how the bow tunes rather than how its tillered. When I shot split it was usually around 3/8. Also play with the brace height a little. On some bows it makes a difference and some it dont.

Typically it would be about an 1/8" higher than you would have it for split. My current ACS is tilled split but I shoot 3 under and my nock is 11/16" above center.

what everybody above said

Ditto that

yep.

Guys,can't you tell by a paper test?    Mine was kicking the fletchings up after release. Even my friend saw it from the side and suggested I raise my nock. Now it's nice and flat.

Thanks Gang      

Don't forget to use a nock set below your arrow nock as well.  If you use just the conventional one nock set above the arrow and shoot 3 under, the nock of the arrow can be pushed down the string a bit when you release and the flight of the arrow will have a lot of up and down movement.

raise

Raise it to 5/8

Start with your string nock at 3/4" above perpendicular.

When mine was too low I could see it in the paper test.  Big rip on top.....  Now the paper test shows a nice clean hole with it 3/4" above perpendicular. I got the advice (3/4" above) from one of the best longbow shooters who shoots 3 under.

Generally start around 7/8" and work my way down in relationship to bare shaft tuning results.

For me it seems more dependent on what the bow likes than where I put my fingers.

I rarely have to raise my nock above 3/8"-1/2" but also have a couple bows that want closer to 5/8"

up........

I shoot 3 under and my bow is tillered for 3 under, my knock is pretty much in the same place as when I shot 2 under, somewhere close to 3/8 inch above the bow square, give or take a bit.