The question is what does "same injury" mean? I think there is a good argument that "90% of your hits" is more equivalent for two different characters than "90 hits".
Well, in this instance "same injury" meant exactly that for sake of the example. Plus, in RM, two characters can actually get the
exact same injury.
As for hits depending on age and health rather than experience, that might be realistic but it's not heroic.
I think it is more heroic, actually. The 1st level character with 15 Hits isn't heroic, they are gritty-vulnerable. With 120, they are a bit more heroic. But, anyway, wasn't Rolemasters slogan for a long time, "Get
Real, Get Rolemaster"?
And in the end remember that hits are rarely what kill you in Rolemaster, and criticals treat everyone the same.
I said the same thing on another thread, which is why I think it is totally OK for characters to start out with lots of Hits; it gives them a bit of a buffer, but as it is the Criticals that will kill you they don't mean ALL that much, and the increasing of Hits with level is just an artifact brought over from D&D, an anacronism that needs to go away. (IMO.)