Why would you ask that on a forum of a music site that basically worships blues guitar, not cock rock rubbish that has been banished to the dark corners of the music scene?
Go ask at a place like
www.guitarbattle.com - there are fantastic shredders there who could answer that questions. The only time I've ever seen sweep tapping was Vai at G3 or perhaps a Michael angelo video.
Basically you sweep, and tap at the top of the arpeggio (therefore only on the last string).