If the upgrades touch 2010 hires, then yes, on paper we will have a 6 year upgrade, down from 8 due to no hiring from May 2008 to April 2010. However, when those 2010 hires actually hit the line it might be closer to a true 7 year upgrade.
We only have about 100 ish people left that were 2010 hires so I would expect the upgrade to go to 5/6 years next year.
The junior upgrade right now is the CRJ, not the 175, and no upgrade times are significantly shorter than any other, maybe 100-150 numbers difference, which might represent 1 year of seniority max.