Something has just sprung to mind during our multiplayer test game. In a previous campaign I've played we had a few player having problems with getting skill upgrades every time. This is OK for the first few, while you take up all the good skills, but can get tedious after getting loads. It also makes remembering like ten skills difficult. So we implemented a house rule where any hero who has 3 or more skills may chose to reroll a skill upgrade on the advancement chart and if a skill upgrade is rolled again you may choose an attribute advance instead. What do you think?