Should I post rewards as a bundle at the end of the month? (Patreon)

Recently I've had problems with keeping up the regular posting schedule for rewards, like high res files and PSD files. I usually post these rewards a few days after I'm finished with a piece. Sometimes this gets stressful and I don't get around to doing it, since I usually start with another project right away.

I thought about posting those rewards at the end of each month instead, or maybe on the 1st or 2nd of the month right after, in one bulk post, instead of multiple smaller posts throughout the month. I think this would help me streamline some things and makes it easier to keep a schedule.

What do you prefer?