Do you .... blink ??
I was wondering ... on each observation night, we all are producing several stacked images with identical exposure parameters of the same (wide) field of stars, with a total exposure time per image of perhaps 60+ seconds. I looked at one of my stacks and compared it to a star map, and found I could identify individual stars down to about 8.8 mag with some confidence. I guess it will be similar for other DSLR photometrists.
So the obvious question is whether one should bother to invest a little extra time after doing the quantitative photemetry part to check (e.g. by blinking the stacked image with a reference shot) whether there's something that didn't appear there before.
OTOH, 8.8 mag is not THAT impressive as a detection threshold....so what about you: Do you even bother to blink?
P.S.: To give an impression: this is a screenshot of displaying one of my stacked Eps Aur images in AIP4win at 1:1 resolution and with display settings favorable for "blinking". Eps Aur is the bigger disk at the left and eta and zeta Aur are at the right hand side. The "stripy" artefacts are introduced during stacking by automatically slightly rotating images to compensate for field rotation (as just a static tripod is used).