I do have a couple transformer outputs on my gear, perhaps I should
connect low to shield.

Rather than making alll new cables with 2 conductor to TS plugs,
perhaps i will use my existing 1 conductor instrument cable to TS
plugs, connecting T to T and S to S at the patchbay, then putting a
jumper between R and S at the patchbay. Could this be a problematic
shortcut? It would make things alot easier for me.