How hard would it be to delete the upper jack shaft?
It seems odd that I got #50 chain from t20-jackshafts, then #60 to the lower center.

Reason being for a future project, (once I ruin this set of sprockets and chains which in time is inevitable) I want to upgrade my chains to a more hardcore type.

Replace all my 50 chain and sprockets with 60 0-ring, and transmission straight to center with 80. So hopefully They should metaphorically last forever.

Opinions?