Ok, now that we've gotten a bit of a baseline on Morul thanks to DC, two sieges later we can see how he's fared. Between the first and second sieges, I upgraded the orcs to size 10, damblock 6 (+2 in each category) to see if that allowed Morul to spend more time fighting. It did, to the point of exhaustion when he faced two squads at once. Still didn't take any damage, but I'm nervous when he goes unconscious in the middle of battle, so I'll mix things up a bit.
Morul picked up two attributes - one right after the first siege and one right after the 2nd. He increased from 1,459,874 to 1,515,160 xp - 55K xp. That takes him from level 166 to 169. Wrestler has increased from level 38 to 41, shield user from 35 to 38, and armor user from 20 to 23. Hammerer from level 7 to 11. So, in experience points terms, even though he's training on hammer, he's gaining xp faster in wrestler, shield, and armor. The two attribute points were in toughness, increasing from 24 to 26.
Morul has at least one, and maybe 2 more rounds like this to finish hammerer, 4-5 rounds for sword, and 3-4 rounds with axe and spear each. He may pick up another 10-12 attributes by the time he's done with regular military training if this pace continues (Although I'm hoping bladed weapons increase faster than the blunt ones)
And of course, now I think he's going to have to get a weapon skill up to match Captains, which will take freaking forever.