First time trying to scale in -- I didn't know before that scaling in does not affect PDT rule. I scaled in poorly: shorted too much size (75% of the full size) in the beginning and turned out to have a terrible entry (it went up ~.15 after), and then sold the rest (25%) into a panic and got a fill 15 cents less than the price. One should "SELL INTO STRENGTH, and buy into weakness").