𝗟𝗮𝘆𝗲𝗿𝗲𝗱: The layered or weld file is pre-made. Easy to apply, but will use more vinyl and you also need transfer tape.
𝗡𝗼𝗻-𝗹𝗮𝘆𝗲𝗿𝗲𝗱: you can adjust (move, delete, change) elements. You can also save vinyl with these, though please note that you will have to apply elements one by one.