I’d like to offer basic training plans online. For those of you who do this, do you write in the weight to use or just advise how heavy the weight should feel? I feel it makes more sense to advise how they should feel (i.e. you should have proper form but the last two reps should be very challenging, or, you should be able to do these reps for a full minute, etc) but didn’t know the best way to get that across. Thanks!