Many glassblowers pull points in order to begin making hollow glass forms from boro. Shawn actually has a different technique that he uses for everything from hollow beads, to goblets, vases and (yes, even) pipes.
We finally got around the uploading a video on how he prepares glass tubes for use in the shop.
Beginning Lampworking: Welding hollow handles instead of pulling boro glass points - Shawn Tucker
https://youtu.be/dtt0nzSF9y8