Amit - this sounds like two different sets of switchbacks I think most everyone is referring to the 97-99 switchbacks from trail camp to trail crest which is on the main whitney trail.
if your guy is talking about guitar lake that would be the switchbacks that bring you up from the valley if your on the JMT forrester pass is also a section of the JMT that is not related to hiking mt whitney
Luisito - I will look forward to your trip report, I am coming up on Sunday to camp and acclimate and hiking on tuesday/wednesday - hoping to leave any extra crampons and ice axes behind if I can!
