I have doubts about you actually using IPS. Even when you get mobs lined up, there are height issues. Try using IPS on a group of drow with spiders. You will hit one or the other, but not both.
Yeah, the IPS hit does not compute.
IPS is the hardest multitarget damage to use. (Yes, I've played, casters and thf cleavers etc).
Overall, I have to say that reading the OP on ranged changes, I just am walking away pretty ****ed off.
You want lama feedback? Keep it up longer than 36 hours. Showing us you will listen to that feedback would also be helpful. I used to do a lot of lama testing, but time after time Turbine showed all of us that it was really just a preview server. So far, you are not doing a good job of showing us anything different from the old Turbine and Mournlands days.