- I don't think that a change in the number of wounds inflicted is absolutely necessary. I don't like static modifiers and I think D3 is too little.
- Really should only hit either the rider or the mount, randomised as for shooting. This along with mounts counting for the character's % have killed the ridden monster.
- I feel cannons should have a BS requirement. I do not like the current system. Being able to fire a cannon through tiny openings that would give a hefty modfier if it were a handgun is just silly.
- Cannons should have strict rules pertaining to terrain, not just walls. Absurd that they can bounce through a wood or a river and keep going.
Nominate target and roll to hit. A miss is a miss and the shot is wasted. (Or you could scatter it, I guess). On a hit, the target model is hit and then it bounces an artillery dice number of inches forward.
It would be a little less effective but critically firing through troops would be penalised and hitting skirmishers and the like would be difficult as it should be.
There's far too much in the game already that can blast units regardless of cover (magic missiles, etc) and GW learned that less with organ guns and hellblasters, they're too good if they hit automatically, particularly against units in cover, and really makes to hit modifiers a waste of time.
The fix to cannons was a re-write of the rules. Unfortunately, the price hike makes it harder to fix later. They needed to be fixed in 8th and unfortunately not only did they fix the issues with cannons they made them worse! And when we get to 9th all the cannons will be so expensive that making such a fix will make them all overcosted. So it goes around and around!