212 I think you will find somewhere on here that HC mentioned that they use the (BAR)ALT hold, corrected against RADALT, as is holds the height more firmly than does the (RAD)ALT hold. The (RAD)ALT hold is "softer" as otherwise it would follow the waves and jump over boats passing underneath etc.
Not a negative crossover from the 'old' tech L2, more a carefully thought out practice.
When are you dropping by here for refreshments?