Just incase anybody is interested there was a 3rd version of The killer released on VHS in the U.K by Palace Pictures, that contained a few seconds more of the shootout at the end.

Chow slids forward across the floor fireing 2 guns when they exit the church.

You can see it on the HK Trailer and the Tiawanese Print. I think it was included in the Made In Hong Kong VHS release also.

I noticed it missing on the Hong Kong Legends DVD back in the day and thought it was weird only to find it the same over all the DVD releases available.