- The XT of Syncro literally stands for extra tough, indicating that this exceptional monofilament is highly abrasion resistant and durable. - The breaking strain quoted on each spool is an easily achievable knot strength, appropriate to its diameter. However, with carefully tied, mechanically superior knots like the five turn grinner, average breaking strains can be significantly increased as indicated below. 10lb (possible 15lb), diameter 0.30mm 12lb (possible 17.5lb), diameter 0.33mm 15lb (possible 21lb), diameter 0.37mm 18lb (possible 26lb), diameter 0.40mm So Syncro XT Loaded was born. Upon casting out it sinks through the surface film virtually unaided until it just hangs from the rod tips. And if a slack line approach is required it stays that way, lying tight to the bottom to the extent that you can feel it peeling up off the lake bed when winding in. The dark olive pigment disappears against any lake bed and is actually very difficult to see when suspended off the rod tips, even in tap clear water. Regarding knot strength, just like the original Syncro XT, the new Loaded is underrated and the following knot strengths can be achieved using a carefully tied five turn grinner (tested on calibrated digital force meter): • Nominal 10lb (0.30mm) Possible 15lb • Nominal 12lb (0.33mm) Possible 17.5lb • Nominal 15lb (0.37mm) Possible 21lb • Nominal 18lb (0.40mm) Possible 26lb Although Syncro XT Loaded is limp straight off the spool we recommend soaking it overnight so that it absorbs water and becomes even suppler as it is loaded onto the reel spool.