Because of our flexible plugs on the sections and the separate control panel the sections are extremely easy to unplug and move around. Almost all electric kilns use an alloy elements made of Kanthal A-1 or the equivalent. Some kiln manufactures offer element upgrades. APM alloy elements are available for some kilns but are very expensive and of questionable cost-benefit in the thin gauges used in electric kilns. Upgraded elements are recommended primarily if you plan to fire the kiln often to Cone 6 or above.
Some manufactures use a screw on connector that slips over the twisted end of the element.
We tried this briefly several years ago and found that it caused element ends to burn out prematurely. The element end is sandwiched between two nickel plated washers to increase the surface area touching the element end and securely and tightly fastened with a nut. The wires that go to these element terminals have ring type high temperature terminals and the wires themselves are double insulated to resist attack by the heat. Look carefully at how elements are terminated. It can be a great source of trouble.