I've got some new jobs starting up that are referencing ASCE 7-10 now for wind loads.

I've been comparing 7-05 to 7-10 to assess the impact. From the standpoint of piping, it looks like ASCE has essentially eliminated the Importance Factor (I) and adjusted the wind speeds up. The other equations and factors look to be the same.

That suggests that I can still use the ASCE 7-05 method for wind load profiles by specifying the higher 7-10 wind speeds and setting the Importance Factor to 1.

Does this match up with what others are seeing and implementing?

I also notice that the nominal wind load in the Allowable Stress Design (ASD) - Basic Combinations (2.4.1) now uses 0.6W rather than 2005's W.
This change appears similar, now, to the seismic use of 0.7E rather than full E in ASD.
I am unsure of the implications on piping.