Very far. Luffy's whole body is rubber instead of needing to weave hand signs to create it. Also, with Gear Second, Gear Third, and Haki, Luffy has figured out how to use his rubber in much more efficient and versatile ways.
His skills compared to Luffys on a scale one to ten, might be two at the very most. being generous and optimistic.
Nah, scratch that.
Might be 1.
Luffy shits on Deadai