okay, well reason i was skeptical is that when browsing through bitcointalk I have frequently ran across more 750ti failures than others, but lots of people switched to 750ti and ran without powered risers because of the promised low power draw. That could be one reason of the issues reported when they got available. but less failures are reported now so what do i know, you got more experience with nvidia than me, I am just a keyboard warrior I mine with three r9 rigs, I just got a bad impression from start about these babies. First models available usually had no power plug so that made me wonder about power draw from motherboard and made me suspect bad reliability.
A while ago I was thinking of ordering 18x single slot ones and put them in three normal cases using a gaming motherboard, fitting 6 750ti's in each. all cases with custom made side with 6x 120mm fans blowing in from side, then I can stack them on top of each other. That would be awesome cause I could perhaps get free electricity if I can cramp them in so tighlty lol