Roll Bar too

[voucht]

I could manage to get my roll bar locally made, but I made a little mistake in the measurements of the main hoop: I told them 416mm high from the lower face (to be welded on RB1) to the top, instead of from the lower face to the middle line as in the book. Which means that the main hoop is about 25mm too short. I'm not tall (1.73m, sorry don't know how it is in feet ), so I think it is not a big problem. But do you guys see any problem with a "too small" roll bar ?
Thank you.