Of XMs. It seems to me that gen 4 xm18s are just about perfect and I find it difficult to see anything that could be changed for the better to require calling it a new generation. I the xm24 and xm18 3" may be due for an updated a la the gen 4 3.5". Has there been discussions like this that I missed? I like the direction RHK is going with the accessories, a good selection of production blades and different finishes, maybe no more generations are needed? What are your thoughts?