Dang, didn't know people would get so upset? I mean it's a pretty valid question to be honest. Not sure how asking what Alt setting i should use in death valley would make me "unfit to fly" but okay. MSL stands for Mean Sea Level. Basic part 1 knowledge.
So in my Laws and Regs class we went over ILS aprch. 5 components we said were needed however many of my buddies say DME is rather pointless for ILS approach. Why would they say that? is it because Distance measuring is already a factor in precision decent? Makes sense to me why they would say...
So imagine you're on run up, you need to dial in your altimeter. Airport elevation is below MSL. Lets say -150ft. What do you do? Not that it matters but lets just say standard pressure too. Please help I haven't slept for 3 days over this. Need resolution asap.
From my experience it is how proficient you are. If you are expecting to solo next week you should be fine. There is no FAA regulation mandating T/O's and Ldngs, all up to your cfi.