unless you have powerful shoulders, sling is best way to carry,
our method for using sling can walk all the way 8-10 clicks or more
no problem.
But the 84 sling is useless take and throw away, we prefer to get
the GPMG sling as the shoulder piece is wider hence spread the
preassure on the shoulder, for added comfort use camoflague face
towel as shoulder pad. Useful bcuz part of the long towel can use
to make shoulder comfortable other part can use to wipe sweat off
the face.
For movement with sling, the problem is the biport always hitting
the side of the leg esp when start to run or walk fast, we improved
this method from begining.
First sling the weapon on your shoulder as you normally would with
biport facing down, next use either hand to grab the biport and
twist anti-clockwise so biport faces upwards, in the end your elbow
will wrap around the biport stock and prevent it from bouncing
around and depending on length of your arm your hand grabs either
of the 2 gun handles.
This does not improve the weight, but our team finds it easier to
carry as it is tighter which makes it easer to run with, no more
biport hitting side of leg and for bash thru it also works because
many times vines and small branches tends to get caught around the
gun and biport, this way it is easier to remove than to try feel
for it in the gloomy darkness.