That would seem to compromise 4G's defining feature: consistent playability.
ALU Power is very different in that respect. It starts off amazing and eventually drops to something I don't like (I can't speak for others). 4G, on the other hand, stays nicely above adequate for the whole duration.
4G comes in a rough version, with the same texture as ALU Rough. I'd go with that in the crosses if you're looking to spice up your 4G.