He's from Middlesborough Rich so probably shooting our NEFTA or UK rules.
But you have raised one good point I hadn't thought about, as we also shoot winter league comps up here shooting HFT or SFT to 55 yards, so the same would apply as you have stated. Your HFT rules would be similar to our SFT rules.
I have shot a few 55 yard comps to HFT rules and you need a very clear scope such as a 26mm or 32mm front lens if its fixed. Mind you I did shoot the PJ springer champs with a 4x12x40 Panorama and did ok, but it was very blurred at 55 and I moved the PX to 27 yards before I started.
I bet this is confusing the heck out of the OP.