If you want to change some storage parameters after the TRUNCATE or if you think there data will be packed into fewer extents after the reload, then using DROP STOREG would be OK.
But if neither of the above is true then there is no point in using DROP STORAGE. In fact, if there is a lot of extents to be re-alocated during the reload proces then DROP STORAGE will slow the reload down a little.
Jurij Modic
ASCII a stupid question, get a stupid ANSI
24 hours in a day .... 24 beer in a case .... coincidence?