The Bosch Glider seems to be a crap shoot. Plenty of people report no slop, then a sizeable number report slop. I have seen saws with none and some with an unacceptable amount. If I hauled a saw around all the time I would probably buy the Kapex and put up with its quirks and potential armature failure. I took the road less traveled when I bought my current miter saw, I have the Milwaukee 6955-20 and have been happy with it for about 8 years.
Of all the laws Brandolini's may be the most universally true.
Deep thought for the day:
Your bandsaw weighs more when you leave the spring compressed instead of relieving the tension.