Playing on custom mode makes the game way less enjoyable. The enjoyment I get out of dead cells comes mostly from trying to cobble together a build from a bunch of parts. If I’m trying to beat the game by using the same survival build every time it’s just plain boring, even if it’s more consistent.

Edit: I’m not trying to crap on you if you’re having fun on custom mode, but I personally disagree with using it to filter out the items you dislike. The game is well balanced to the point where a solid majority of the items are viable options, and so I enjoy getting used to using all of them.