Yeah, it matches our experience, so has a nice simulationist feel to it. However, part of the art of game design -- or at least simulationist game design -- is getting stuff that simulates whilst works nicely in practice*, and I'm not sure TPs are the latter. Similar Skills in RM2 Companions approach it from a different angle -- not in learning, but in executing -- but it's clunky (GURPS skill defaults work better, I think, as they are based on a per-skill basis rather than requiring lookups tables that expand with every new skill).
Myself, I use RM2 Similar Skills done ad-hoc (which is to say, GM decision at the time, not based on table lookup although if the player knows the conversion I'll bear it in mind) based on bonus (rather than ranks). You could add TPs to have the other side of synergies and context -- not just in execution of the skill but in actually learning it -- but they weren't well-developed in RM2 (only in Arms Companion, as I recall, and clunky and unbalanced) and as I said earlier, I prefer using background ranks and just sticking all this stuff in chargen, which overlaps with some uses of TPs, particularly Lifestyle TPs, but doesn't cover the whole thing. In RMSS/FRP, where they're part of the game, I guess I'd use them although they also have the race/cultural background options as well (giving a fine-grained approach to chargen, but which comes at a cost, I think).
I'm not against TPs, but I don't think I like them enough to calculate a list of them for RM2. Although now I say it, it sounds like it might be an interesting project as it might encourage me to do data entry of skill costs for the RM2 DB-backed chargen web application I keep meaning to do.
*Which is basically why I think Runequest is the best-designed game, although it doesn't do TPs (although it does aggregate skills at chargen based on background and I guess you could use something similar for years spent doing a particular profession rather than adventuring). The game as a whole, though, simple but feels right, over 30 years since it was .