I have to set up 4-5 cutting tables a month for Project Linus group and I use the white folding tables and my dh cut 12" pvc pipes I carry with me in a plastci litter box that I had empty. Makes it so much easier on the back.
Never bought risers like you mentioned.....These legs fit right in the 2" pvc pipe and raise it perfectly.
Glad others have the use of either one. Saves the back......