I purchased a used frame that didn't come with the full headset but did come with the alloy cups still installed. They are ZS44/ZS56 tapered setup. Likely Cane Creek 40-series.
The cups appear to be in perfect shape. There is no visible wear.
- Is it worth pulling them and pressing new ones?
- Since it's standard size bearings, am I ok using a different brand headset with the existing cups?
I'm hesitant to pop the cups if it's unnecessary. Hammering with a cup removal tool can cause unnecessary damage to the head tube (alloy frame).