I guess it is personal preference issue as both types hold the electrodes. In 40 years of heavy industrial construction, I think I saw one twister holder that a boilermaker brought in. Mostly we use the 200 amp Tweco which is similar to Lenco except the insulator on the holders are better quality. My only complaint with Tweco is that after using them for a few thousand pounds of welding rod, the grooves wear to where the only one left that will hold a 3/32" rod is the 90 degree groove on the very tip of the holder. This can be corrected with a file in a few minutes by filling away some of the holder base so the grooves arent so deep and you are good for another thousand pounds. If you burn the rods down to nubs, you will burn off the insulator eventually, so you need to leave about an 1.5" of rod to keep from overheating the insulator. Also dont use the electrode holder as a chipping hammer if you want the insulators to last.