ok I read the chart to indicate about 18 oz
i converted your grams to 21 oz,,
so I dont know if that much difference would cause hand shock but the bow might be just a bit heavy,, hoping some others will chime in,,or that might be close enough to really be in the ball park,,
in my experience reducing tip weight helps,,
also make the bow a bit shorter and side tiller back to weight would help,, there is a trade off with set or string angle,,
I am guessing if you narrow tips as much as you can,, you will be happy
3 0z is 1300 grains,, so that might make a difference,,,like I said I am not a math guy,, but if I have a bow that is shocky that is one of the first things I look at,, I dont weigh the bow,, I can usually tell from the shock and speed through the chrono,, if its slow and holding a nice profile,, I know I probably over built the design,, and make adjustments until I a happy with the way it shoots,,