I wanted to maybe get an SX Pro/Gear or R4S, but I have several questions about them. 1. Which one is better? 2. Will they brick the Switch? 3. Will the jigs damage the Switch? 4. Can you connect them to a computer; if so, how? 5. How do you backup/restore the NAND with them? 6. Is there anything that cannot be used with them (Hekate, ReiNX, Atmosphere, Linux, Lakka, Homebrew Launcher, etc)? 7. What site would be the best to buy them from?