Originally Posted by DaveSSS

The reach difference between the two frames is a trivial 4mm, but the stack difference is 24mm. The smaller frame can be matched to the larger one with spacers and/or more stem angle. That's why it's important to start with saddle height and know how much saddle to bar drop you want. If you're sure that the minimum stack on the larger frame is OK, then choose it, but be aware of lowering limitations.

In my case, I have a 527mm stack and it works with only the 15mm headset top, no spacers and a -17 stem. Once the steerer is cut for no spacers, only stem angle can be used to raise the bars. If I ever need more bar height, I'll just go back to a -6 or -8 stem.