Im running stock it does the job perfectly for me, plus i rely too much on the double tap on the home screen to turn off feature.
Was running stock for awhile then switched to nova, it seems to run much smoother! Yes you lose double tap anywhere to lock, but you could still do it if you double tap the status bar
How about double tap to wake, does that work with Nova.
I couldn't get it to, so I went back to stock, does a perfectly good job for me also.
Thanks,
Fred