Timing is what's important. Also a G5RV is terrible on some bands, including 17m, so even if that band is wide open you'd be lucky to do much with it. It's also not great on 30m, and just sorta passable on 15m. Even with a very good tuner. The G5RV is mostly good on 40-20-12 meters, and part of 80m. Even with a very good tuner. The higher it is above ground, the better...50 feet or higher is ideal. Lower will 'make contacts' but not like it can do at a higher elevation. Then, timing is very critical. The higher bands 20m and above are mostly 'daytime bands' now...with some exceptions...but mostly good during daylight hours. 40m is good all the time, but local daytime and DX nighttime. 80m is even more local daytime, but also good for DX nighttime...often waaaaay past dark. My first suggestion would be antenna work. The rigs are fine, no problem there. I worked 277 countries with my TS-850S from 1990 to 2001, it's a great rig. But antennas are where to put the effort and the money. My 80/20 rule is what I mostly follow...20 percent on the rig, 80 percent on the antennas. I'm working China right now on 17m CW...it's wide open, but with a G5RV I think it would be unusual to experience that, as it's a lossy antenna on 17m and was never designed for it.