Is there anyway you can script a rebuild of SIFT indexes from SQL?
Try this: http://www.mbsonline.org/forum/topic.asp?TOPIC_ID=8160&SearchTerms=rebuild,SIFT There might be some advices you could check.
Yes, and another one : http://www.mbsonline.org/forum/topic.asp?TOPIC_ID=10435&SearchTerms=rebuild,SIFT Pay attention especially to the last answer for that topic.
Here is link for a script that optemizes sql tables. http://www.mibuso.com/forum/viewtopic.php?t=10331