I would say that the improved ultiamte steels would work for deer, but as with any head this small I would exspect blood trails to be sparce, of course alot of that depends on the hit as well. they are still not my first choice, but I now feel better about recomending them to those that really want to give them a try.
The scores depend on the test material, some goes as high as 6 while others only up to 4. I have not teste the slammerhead by name, but have tested the miniblaster 3L with the pathfinder point. This is almost the very same head. You should find the results on this page or maybe around page two. Overall it' s a very good head.