It depends on so many variables like you said it would be impossible to make a meaningful predition as ot "peak" browse production. I'm not sure what you mean by "peak". But I can tell you that depending on when and if you burn after the selective cutting you could see forage production begin as soon as the first fall if there is warm enough temps. But typically the 1st and 2nd spring are the best times for forbs and initial grasses.