From my experience in the games I DM here &LEB PC's have very little issue hitting the monsters so potential stacking will make it even easier.
LOL You must not be looking at the games I've been playing in. One of my first games here, the only way I could damage the enemy was to use my ice armor spell and stand near the bad guys and let the auto damage do it's work. I think I hit once the whole game.
Over in LEB, I had 4 rounds of 1d20 rolls for attacks that didn't add up to 20 and we had at least one round of combat if not 2 that the WHOLE party couldn't hit the last wounded bad guy. Total misses all around. I can say with confidence that I've missed WAY more often than hit. (stupid IC)
I wouldn't mind the ability for the character to pick their 'expertise' at 5th. Racial expertise feats award bonus damage along with to hit as long as you use a keyword attack. However who'd use it if you lose the to hit bonus at 5th? You might as well take a focus feat for the damage and all your attacks get the bonus damage.
To address Velmont's multi-weapon/implement worries, Versatile Expertise allows a weapon and an implement so all those weapon + implement characters aren't an issue. There might be a corner case of people using a variety of weapons though. It's in dragon and hasn't been errata'd so it'a avalible.
How about this. Allow people to pick the generic expertise (+1 to everything) or their racial expertise at 5th. That way if you want to juggle 5 different weapon in a fight, take the generic. If you're a dragonborn wizard with a flaming staff, take your racial expertise.
To evilbob, does our expertise affect racial attacks?