Why is everything out of stock?
When people "panic buy" items in unreasonable quantities it causes a shortage. Remember when everyone was hoarding toilet paper? If everyone had simply purchased their normal amount instead of buying everything they could get their hands on, we wouldn't have had a shortage. There is absolutely no reason one gymnast needs 4 pairs of grips every few months. Yes, you might want to have an extra back-up pair each season but you don't need a different pair for every day of the week.
On another note: When items are sold out it really does mean that I have reached the limit of what I can make. If you were shopping a limited collection online at Target and your item sold out before you could make your purchase would you email Target to angrily tell them you "needed that item!"? I ALWAYS offer different ways to order. Sometimes I release inventory, other times I may open a waitlist or take pre-orders but some type of opportunity is made available EVERY week. I purposely switch things up so everyone has a chance. I do not want to turn anyone away but if you urgently need an item that is unavailable, you may need to consider a different manufacturer for the safety of the gymnast. Safety should be the number one concern!