If they are MSR Denali's, you made a good choice.
I use My MSR's up to about 5000 ft. sometimes 9000 ft. on NW peaks.
ps I not sure if it's OK to talk about gear on this post. Do you know?
No problem unless you're being paid by MSR. I own a cheap pair of Redfeathers myself, good enough for the limited times I use them but I like the MSRs a lot better.
Seeing this really makes me want to bag Mt. Marcy in the winter. It must have been slick up there.