Tuuk RUNNERS !! LS4 vs Lightspeed Pulse Edge

[lpgbackups 18]

anybody knows how these 2 are different?  i dont like gimmicks, actually i cant stand gimmicks, and also, i dont like carbon which i dont think is a gimmick but i dont like it, but I like high height for my steel so im debating between the old LS4 and what i think is the newer runner thats the closest to it, so im guessing its the Tuuk Lightspeed Pulse Edge.  couldnt find much info online as to how these 2 are different or if one is just replacing the other

[BruinDust 42]

Didn't the LS4 have durability issues and were prone to breakage? 

I'd go with LS Pulse or even drop down to LS3. 

[lpgbackups 18]

i loved both my LS3 and LS4's