I shot better with the 4 than the 5. It fit my hand well.
Had I decided to get another striker, my first choice would've been the M2.0 Compact, probably followed by the PPQ 4" (I already have the Q5 Match). Glocks just don't feel as good in my hands as the others. I wasn't crazy about the CZ P10C, but the P07 fit me so well and felt like "I've come home!" I decided it was worth learning the DA trigger
No striker I've used really hits the feeling of a true SA trigger, and the P07 has a great one!