This is the DFC I worked up on my 54" S-quad I posted a couple weeks back.
So....how do you think it STACKS up Be honest!
[attachment=1]

  Curve looks Pretty Good it looks like it is starting to stack just past the 28" mark...  Where are the numbers???  I go a lot by the numbers... Things can be so subtle that charts can look very similar...  With my bows I am finding that you want about a 10% or more gain in the beginning and low 5's or under 5% at the end of the draw for good performance...  The chart has a nice smooth flowing line to it...  How did you measure the weight at each inch accurately?? Do you have a number at 9"???  Between 9 and 10" is gonna be your biggest gain unless you go to a lower brace height...
   Just looked up the pic of your bow...  Looks Great...  Did you run a chrony on it???

10"-5.75#
11 - 9.85
12 - 13.38
13 - 16.48
14 - 19.12
15 - 21.77
16 - 24.07
17 - 26.30
18 - 28.44
19 - 30.56
20 - 32.65
21 - 34.86
22 - 37.09
23 - 39.42
24 - 41.89
25 - 44.45
26 - 47.23
27 - 50.03
28 - 53.23
29 - 56.60
30 - 60.26

Weights were pulled on tillering tree.  Pulled all lengths twice than averaged the two.(none differed more than .1#)
Haven't had a chance to chrony yet.  Free time and weather haven't aligned yet.

Looks like a dumb wavy line to me...

 
No, that's a wavey line!!!!

No, that looks like a  54" S-quad..

So I put it into my DFC calculator I made the other day.



I'm not sure what your brace height was, but I just assumed 9" from your picture. I also didn't know your arrow weight so I just put in a random weight around 9gpp. Do you know what velocities you are getting with your arrows? I'm guestimating that you'll probably get over 180 fps if you reach 70% efficiency (which I'm not sure how FG bows average in efficiency). Your SE/DW ratio is about 90% which isn't bad, but it shows that it probably has a little bit of stack.   

Greg, the actual weights and lengths are a couple posts down from the chart.
The brace height was set about 7.5".

Havent had a chance to chrny yet.

Ok so I re-entered your values. Most every value stayed close to the same although they did get slightly better. A SE/DW ratio of 92% and hypothetical velocity of 180 fps at 70% efficiency (which may be a low efficiency I'm not sure). When you get the chance Chrono it and get back to us. I would like to know what efficiencies people are actually getting.

My FDC curves always look like a a broken staircase.

Quote from: Bvas on March 28, 2018, 03:01:55 PM

No, that's a wavey line!!!!

BWAHAHAHAHAHAHAHAHA, now that's funny.

Rain finally stopped long enough to get the chrony out.
Tested @ 28"-53.23#
Braced @ -7.375"

Bareshaft arrow 479gr total weight(175gr tip)
Mechanical release 192.5fps

Bareshaft arrow 554gr total weight (250gr tip)
Finger release-172 fps
Mechanical release- 178.5 fps

Numbers look good . What does the bow look like at full draw?

[attachment=1]

That is kinda what I was guessing, 177 to 181fps...    Not bad... I think the bow is sweet...  I am not familiar with shorter bows it may be difficult to improve on performance...  One thing I think that can be done to get more performance out of  bow that long is to move the riser forward...

Speed is good. Full draw looks good to.

I don't know about the DFC but it's a sweet looking shorty 

DFC is what them gwass boys do..

I like the profile at full draw, bends nice with slightly stiffer tips, keeping a good string angle.  I think you nailed it congrats!

  Ok Bvas...  I am curious...  What are your plans after hearing all the Gurus??     Are you gonna make some changes??    I agree with Jess...   I think you are damn close to nailing it...  But I feel there is always room for tweaking...