I have a question. If it is a Wednesday and really humid, is it ok to use lasted shoe trees? Because the leather should be a bit swollen due to the moisture in the air and it might stretch out the shoes too much. Of course, if there is percipitation in the air on a Wendesday one shouldn't use trees at all, however if it is a Saturday during the winter, the dryness would require the use of lasted trees, correct? But, what about if the axis of the earth is changing like in spring and it is a Friday and not humid yet like in August, should I use lasted or regular trees, if regular how tight should they be that the dryness won't crack the leather, or over stretch the shoe?