With a typical run of coax from the dish to the receiver, RG-59 has 3 to 6 dB of additional cable loss than RG-6. 3dB is 1/2 of the power getting to your receiver. Another 3DB will drop it to 1/4 of the power getting there. Stay with Quad RG-6.
The first thing user see usualy is loss of even transponder, this would happen on both 101 and 110 also. If it is just a signal loss the higher you go in transponders the more you are apt to see it. If you are just loosing signal on 119 Sat you may not be peaked or have a line of site issue to the 119. When ever posiable go with RG 6 preferably with solid copper center conductor.