I own LTX II, GLX, MB Evoluzion and fished Evergreens. I like japanese rods for their workmanship and quality. What I can say about the sensitivity is, that you feel what you have to but there is a difference to USDM.
I like my BCR 803 especially for senkos. I already feel much more with this stick than with any other JDM product. However, the GLX can't beat my Helium LTX II if you just look at the sensitivity.
Has anybody of you ever fished the new St.Croix Legend Xtreme or Elite and can tell about their sensitivity?