I recently read a post about entering wind details into the LASTE component of the CDU to improve dumb bomb delivery. I followed the guide but when I get to the bit where you have to enter the altitude for the wind data I start with line 1 as 00 (ground level). This is fine. But when I enter 06 (for 6000ft) it goes in as 03. I tried 09 and this goes in as 07. I'm confused, does anyone have an explaination.