Reading this post I really wonder if people use their Belchers the right way.
Imho they can do potentially two things in the game if they are lucky.
1) Bait and flee, which they can always do. But so can 3 bulls for the same point cost as 2 belchers.
2) Maybe if they get lucky they can do some damage to a small unit of fast cav or a lonely flier lige an Eagle.
The fact that they have to roll to hit is what breaks the poor belchers. On average you will roll a 5 with the artillery dice. At BEST you hit on 4's this is 2.5 hits per belcher thus 5 s4 hits. On an eagle that's 2.5 wounds which is not enough to kill. On rank and file and most fast cav its 3.3 wounds. So against heavy stuff they do next to nothing, plus the potential for alot of damage is about the same as the potential for wipingthemselves out.
I would LOVE for the belchers to be nice, the concept is fantastic. But these days i find it way more effective to bait with bulls, because 3 bulls may actually make an impact on a charge. 2 belchers bounce on almost anything, and as such are not as good baiters as people make them imho.
[/sad rant]
I guess you can guess whose belchers did absolutely nothing last game 
And again I'll point out the numerous comments about how people remember what LBs have the POTENTIAL of doing and them being a better threat than weapon. They make great bait. I recently wiped out a unit of heavy cav to the man because both 2xLB units got range to them and fired. My opponent will remember that and next game I will be able to "threaten" such a thing again. The chances of it happening again are small, but the threat will make my opponent treat them with caution, shoot them from afar as a priority or try to tie them up to keep them from shooting. This means my Tyrant's unit becomes a lesser priority.
You must roll better than me

I continue to take my belchers to the field (often 2x2) simply because they are awesome. They have however never killed anything worthwhile. My opponents know about their potential, they just know thats all it is and usually risk it, concentrating on the threats that are certain and not a potential. I still love them, but from a game mechanic perspective they are
crappy considering their costs not as good as their points indicate

And I was just wondering wether people used them correctly according to the rules, since i aw a lot of chatter about what people kill with them .
ps. is the replybox really sccrewy in IE8 for you as well? the text jumps up and down like craszy here at work.