While this has been an interesting thread, as with most combat threads on RPG fora it all gets confused with perceptions of real world combat. Remember the skill scores are, even in BRP, just a way of grading skills ... Conan with 120 in sword is a lot better than Merlin with 40 who is a lot better than me with 5, the numbers aren't actual probabilities (even if they look that way and we often use them that way) otherwise Conan can't have 120 and I should probably have more than 5 (as long as you stand still but then you won't). One of the features of BRP is that the higher your skill the harder it is to improve so in the long run I will catch up to Conan. The MA skill makes it easier to have very skilled fighters so not only does Conan have 120 in sword he also has 90 in sword MA and since I don't have sword MA at all, I'll never match Conan. So the point of the MA skill is not to somehow simulate a trained fighter's greater ability to do damage but to simulate a trained fighter's greater ability to win fights -- making it give the combat expert greater damage sometimes, is a nice simple, low bookkeeping way of doing this, so even if I have gained lots of experience since I don't have MA Conan should still win. Another simple way would be to use the MA as a second attack that round at a lower Dex (-5 is usual), so Conan strikes twice but I only ever strike once, so Conan mostly win even if I get my sword skill to 130. So you can use grapple MA this way and keep it simple, the Judoista gets 2 grapples a round the Kickboxer 2 kicks etc, the grapples could be a grab and then damage, or grab and then takedown etc. I always let MA be used as either a second attack OR a second defense (without the usual penalty) and I even allow missle MA, Billy the Kid gets 2 shots to my one, so even if he is using a colt handgun at range v my rifle with scope he may well win.