Strings play a pivotal role in transferring energy into your arrow.
So shooting properly crafted quality strings is essential to your bow's
total reliability and performance. Poor quality string wear
quickly, add noise to the bow, slow your bow down, and could even be an
eventual safety hazard. Of course, manufacturers generally don't
warranty their strings, so keeping your strings in good condition is
your responsibility. And strings don't last forever; your bow is
sure to go through of number of strings in it's lifetime. However,
that's no excuse for including poor strings from the factory.
High-end bows certainly deserve better.
There are two major manufacturers of bowstring fibers,
Brownell & Company
and BCY Fibers
Inc. Each manufacturer makes a variety of different fibers,
each with their own unique qualities. We'll not make any effort to
split hairs over which source material is best. We're much more
concerned with the construction and durability of our factory strings on
the Diablo and Liberty.
The strings and cables test was conducted last, with all of our shooting
concluded. Each bow has now been shot literally hundreds
of times. So we're going to remove the strings, give them a close
inspection, and see how they're holding-up. We'll also examine
peep rotation and a few other attributes at the end.
As part of our strings and cables test, we had planned to measure each
string for stretch. But in our haste to begin other tests, we did
not take initial measurements of the factory string and cable lengths -
so we can't fairly compare the changes due to stretching now.
Sorry! Comparing against the factory specs won't do the trick
either. Each manufacturer has a little different standard for
their new strings. Some build strings a touch short to allow for
stretch, others don't. And some measure by different
methods, etc. So we'll just leave stretch out of this!
The Diablo's string is a black/green 20 strand twist string made
from BCY's 452 Fibers. Champion makes their own strings
in-house at their Winnipeg production facility. The Diablo
uses 2 additional cables; a split y-harness and a control cable.
Both the harness and the control cable are made from the same source
material, but both the harness and the control cable are solid black rather than a 2 color twist to match the
The Liberty's string is a tan/green 20 strand twist string made from
BCY's 8125 Fibers. The Liberty's buss cable is the same color
and material as the string and the set matches quite nicely.
Most of Bowtech's strings are outsourced to Vapor Trail, a
commercial string builder, but are marketed under the Bowtech name
as "OČ Strings". However, we understand that Bowtech
is in the process of switching from BCY 8125 to the new Brownell TS1
fibers, which claim to have increased abrasion resistance.
The Diablo has 7 total end loops.
Though they lack some uniformity on the split harness, you can see
Champion does do a quality end-loop serving on the string and
harness. However, we are greatly concerned about the condition
of the control cable. The control cable's end loops are not
served. This isn't particularly uncommon; several
manufacturers do it this way. But this loop obviously needs
the added protection, as it's being badly abraded and several
strands have already failed.
The Liberty has 5 total end-loops. The 3
loops from the split harness are served neatly with 2D .016 matching
green. The loops on the string are served, but with the 8125
string material instead of a braided cord type serving. This
method will probably provide less protection to the actual string
fibers, but it makes for a very small and neat loop. No
perceptible wear is evident on any of the Liberty's end loops.
We carefully inspected ALL served areas of
the Diablo's string and cables. Here are the 3 worst
separations and/or evidence of wear. As you can see, the
control cable serving (though apparently pre-treated with Serving
Saver) has taken quite a beating already. The string (top) has
a separation - but it isn't caused by use and wear, but rather by
some careless technique on the part of the string builder when
serving in his tails.
We carefully inspected ALL served areas of
the string and harness. We intended to show the 3 worst
separations and/or evidence of wear.....but the Liberty had only one
small problem area. Where the string rolls into the post feed
side of the cam, the string is discolored in 4 spots and a tiny
separation is beginning (right side of the photo). Otherwise,
all served string surfaces are still unblemished and have no
TIME OUT: There's no point in
continuing this category. Very
disappointing string work on the Diablo!
commands the round with their OČ strings......10/9.
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