Usually our group builds suggest a start date although some of us start early (like Xmas, just can't wait) and some start later.

No rules to worry about, just build, have fun and post lots of photos. Maybe offer suggestions to the others making it easier to avoid mistakes.

We kinda finish at different times and do a final post with photos and maybe sum up what we thought of the kit.

So basically, no rules, do what you want, build it how you want, do as much or little as you want, hopefully finish without dropping a hammer on it. AND HAVE FUN DOING IT. Pantherman