I have the same rig but I got a pair of Powercab plus cabs, dont know if i need 2 but I have them.......The helix is awesome,,,,,, I have not had the variax but a few weeks action was very high
so i sent it to guitar tech for a setup still working on patches for the variax...... Have been giging with the Helix and PC's.... all gigs cancelled now bummer......