From a teachers point of view, I have taught gazillions of 121's and they are my favourite thing to teach. so .... I will tell you that I never think an hour is enough. If you want an hour to work then be prepared with a model who already has tips on and blended at least 80% (unless you are sculpting of course) and then you are not wasting time doing things that you have not come to work on.
Having said that, if someone has booked only one hour and I choose to go over so that the student has the best experience, I do not charge for it ... We're not to the minute, we don't put on a timer lol. An hour is better than nothing so if you can't afford two hours then go for the hour and do as much as you can to help ahead of time. : hug: