Quick Shifters

[Dead Eye]

If you block shifted down with a quick shifter wouldn't that then require a slipper clutch?
Which my model doesn't have.

Hmm... interesting one. I guess you are referring to how when people usually block downshift, they keep the clutch in. With a quick shifter I would imagine it would be letting the clutch out on every change

Besides this is usually discouraged (handbags at the ready) as any gear change can cause the gear teeth to misalign which is far more likely to happen the more gears you shift at once.