The Ladies at MY Harbor Freight told me the day they receive shipment and also the best time to come in - while they are stocking. Perhaps you can ask at your HF for information.
When the get to $1.50 per blade, they will be too high to purchase because that is the price jHittle charges.
He is now offering 100 blades for about $139. I suggest that if you want them at this price, and not have to pay postage, that some of you pool your orders, one person order the 100 blades, that come packaged (sealed) in sets of 10. I still have 4 sets from the last time I ordered but I did not buy 100 blades, I bought some other items and paid $1.49 per blade at that time.
I would be willing to order and then split the order and send them you if you PM me to let me know your interest. That is - if and when Harbor Freight blades either are no longer available or go above Hittle's price.
Something to think about.
June