We hear a lot about strings, the pros and cons. For the most part it appears folks just do what everyone else is doing and create "theories" for why.
Once upon a time when few choices were available making a string that wouldn't break was the priority. From what I can find, a 10:1 ratio was considered adaquate. So for a 50# bow 500# test was plenty.
There's a lot of again "theories" how stretch effects performance and or has the potential to damage bows. If we tried to tow a bus with a 1/4" poly rope, it's going to have a given pound test and it's going to stretch xx amount under a given load. Now try to tow it with 1" poly rope..Same material..Higher pound test, less stretch...Right..
Now enter all our opinions on bow strings, what we've read, what we've heard, what we have seen with our own eyes....No one has ever done a "fair" test compareing strings of equal strength. We hear the numbers of 5-7 fps between FF and Dacron...But that is between strings of vastly different strengths, just like the poly rope example above. How can one draw conclusions from that? Aren't the results obvious?
The point I'm getting at is the strings we use are typically WAY over built for no other reason then opinions with no factual basis and misleading tests conducted my folks with pre-test agendas.
Examples above with 12 strand Dacron has a 600# breaking strength. Using the 10:1 ratio that is plenty for a 60# bow. The 12 strand DF-97...1800#! Is there any wonder there is less stretch, again going back to the poly rope. Is there any wonder it might be a bit hard on bows?
String manufactures love it, we use twice to 3 times more material then needed.
Pushing the limits.....I have shot a 55# bow at 1.5 grains/pound multiple times with a 4 strand DF-97 string with no string failures nor bow failures. Would I recommend that?? No...Not at all. But it shows how far away from the cliff we are. A 50# bow needs no more then 8 strands of 97, 40# 6, and 30# 4...That 5-7 fps number we hear compareing string differences, becomes 10-15 real quick. That means shooting 12gr/lb the same speed as 10 before. Our common wisdom/culture is buy that Corvette, pinch off the exaust pipes, put a governer on it, and a trailer hitch while we're at it.
Throw out all the arguements against doing this and you'll find NONE of the arguments are string related, such as noise, serving thickness, stability, ect.....O.L.