I get that too, glad its not just me :/Where my post go?!
Anyway, does the pic suggest you use the boost created by small turbo to drive the large turbo's exhaust turbine bit?
It does Neil
My thinking being, cooler exhaust turbine temp, less heat soak, cooler inlet temp and with running from the rear of the car I shouldn't need an intercooler and can run thinner pipework to keep boost pressure up