Here's some info from the L&L site: https://hotkilns.com...element-holders
My gut reaction is that I would go with Method 2 unless there were only a few element holders to be replaced. Maybe Neil can weigh in on this from his wealth of experience.
I believe that L&L updated the design of their element holders at some point. I'd suggest that you call L&L with your kiln model and serial number and find out what your options are.