I'm sorry for being a little confused about the instructions, I have read through them numerous times and am still a little lost. I printed the chin with the M4 bolts, with Cura slicer, and just opened the file and printed thinking it was the proper size. However, I notice a little bit at the bottom about scaling the model to 117%. Does this mean the M4 chin will not fit the rest of the model as I print? Or the perforated Visor? I was under the impression that the Model A was the right size for my head, as i opened them in the slicer. I apologize so much if this has already been answered. Thank you!