Thanks John. Sounds like my times were pretty dead on, short of about an extra hour I tacked on getting to LBSL. I think I recall getting there in about 2.5hrs actually last year, which included me taking almost 30 minutes finding my way onto the ledges. But as I got off trail leaving LBSL, I started messing up my times at that point.
Again, never really had any altitude issues in the past short of one day when I plowed through 4 14ers in an afternoon. Just spent too long up there I guess. I plan on hiking the 6 mile loop at the bristlecone pine forest again a day or two before to help me get used to +10k' activity.
And yeah, the FKT on this peak is mind boggling.
As for the easy walk off, it's got it's pros and cons I suppose, but I like having it available if the final 400 creeps me out too much. That's why I'll put the axe along...self arrest on the walk off if needed.
Still open for tips and tricks up the chute and around the class 3 ledges to iceberg if anyone has any!
Thanks again