This is a good thread!
I been playing in some hilly courses and been finding whether I choose a hi flop or lo chip also depends on my stance more than the type of lie.
The toughest one would be a downhill stance with ball in the rough. How to play this? I cant see to use the bounce of the wedge on this one .
The toe down putting type chip doesnt seem go thru heavy grass that well.
I thinking the Mickelson type hinge and hold type chip with forward press would work the best in this lie.