@Possum: Sorry you feel that way. I've played as them a couple times and never really felt like I had a problem, the only reason I don't play them more is because all cavalry gets on my nerves. That and I prefer heavier troops for siegeing.
I'm not sure how you're using them tactically, but I always keep in mind that they're basically one big shock troop army, the lancers and the like charge in and do as much damage as possible while the horse archers ride about picking off stragglers as well as flanking the main force. (Edit: To clarify, think of a shock troop like Sarranid Axemen, they do massive damage, but leave them sitting in a line formation and they're useless.)
I'd also suggest telling your charging lancers/etc to spread out once or twice, as they tend to bunch up right as they clash with the hostile forces, which wrecks a lot of the lancers couching. You'll have to observe them to see if this is an issue or not. Also, consider sending your horse archers way off to the side at the beginning, and then telling them to charge, this might keep them out of the main fight, and give them a better angle to start shooting from. (Sorry this is long, hope the spacing helps)
@Shadowrun_lucas: Glad you like it, and I have to agree lol. As for more features, I've thought about this before, and it would be neat to have a version with other things in it. That said, I'm not sure I can do that, for one I know that some of those mods have more complicated code then this, and I don't know how many mods I can put into one before they start overwriting each other, kinda just depends. Secondly, I doubt I'd have the time to maintain all that, and I hate to see projects become out of date.
I'm really hoping that Aeon221 and/or Waihti start adding more features instead. Waihti has already added a couple of neat things that are aside from diplomacy (Companion auto loot, damaged horse speed, battle continuation, etc.) and I know Aeon was talking about maybe doing more as well, that is if he ever gets back to working on this mod =\.
If things change, and/or if I find myself willing and able at some point, you guys will be the first to know lol.
In the meantime we'll make due with what we have and hope for more awesomeness to present its self. I know you want more added, and I can agree for the most part, but its just not in the cards for me right now, I hope everyone understands that, but I do apologize for the suckage of it all anyway lol.