That's pretty much what I do too, with fridge dormancy.After the second year is best. So the first year I plan on leaving them outside for the summer and then inside for the winter with light 24/7, then outside for the next summer and probably will skip dormancy for another winter depending the size they reached. By then they should be pretty much adult size. Some people skip dormancy for the first year only and if your seeds start in the winter, they will be pretty big after a year and half and could spend the second winter in dormancy I guess. My seedlings are on light 24/7 for at least the first year. Although mine never go outside for the winter, they go in dormancy in my garage.