Struggles to nail critical/center focus on a Zenza Bronica ETRSi/Zenzanon PE II 75mm f/2.8/Fomapan 100/Kodak Gold 200

Non-judgmental, high-level conversation starter: how much do you struggle to nail focus on a Bronica ETR system camera, 75mm f/2.8 lens, at f4 or f2.8?

Trying to figure out how I am practicing and learning the use of this system, with a WLF or AE Prism viewfinder.

Share your experience/thoughts!

Examples:

https://preview.redd.it/zbrfi98n16gh1.png?width=837&format=png&auto=webp&s=b72d36225dcb270dddde9805695b50d489d6c26f

https://preview.redd.it/c2wbjo9o16gh1.png?width=776&format=png&auto=webp&s=b973c428341aa377d7d86f5be6deb854783a9e19