Logic Systems DesignLogo Design Contest

Hello,
here are my options #19 #21 #24

#19 , the font is good and conveys the digital/electronics theme well, but I'm after a logo with LSD as bold lettering, I chose these initials since they are almost universally known, not for my company but that doesn't matter if they still remember the initials!

here are the updates #27 #28 #29 #30 #31

and here #36

and here #37

here is update #40

Somehow #37 is more elegant than #40, I really like your designs though, a pity I must settle on one!

here are the updates #89 #90 #91 #92

#92 is really good, clear bold characters and elegant in its simplicity