I'm just staring to load .223 . I have a Lee die set but went ahead and ordered the X-die based on discussions read here. After ordering I get the message that due to demand it won't ship for probably at least 16 days even though it was listed as in stock. I'm thinking I could go ahead and full length size with my Lee die set and trim to length and load some up then use the X-die to size after firing those rounds. My question is what should my initial trim length be to use the X-die ? I have read the instructions on line since I don't have the die yet but they are a bit confusing for me.