Actually, the SF-110 was very user friendly IMO.
I did countless tests on that thing.
The thing I found with a small bench not being able to generate high pressures with the big heads was not so much that it couldn’t get the head to go turbulent if the shape was wrong...... it was that it didn’t reveal the gains that you could get out of increased “area”.
Shape was everything......area, not so much.
I really struggled with keeping the Indy 440-1 heads from getting unhappy at high lifts.
When I got the bigger bench and could pull the full 28”....... that problem, for the most part, just went away.
I had both benches for a while.
In a nutshell, on the new bench(compared to the old)...... small heads showed lower numbers, big heads showed higher numbers.
But..... that’s all drifting away from the thread topic.