I was about to purchase a new 3ds and noticed some sellers say they will install arm9loaderhax before shipping if it is requested. Now with my PS3 I am very happy I installed the CFW myself since I know all about how to maintenance it and repair if there are problems but it seems like there is a rediuclously high chance of bricking (even with the newer methods) and I honestly don't want to waste 300-400 dollars. So would it be better to have the seller install the CFW for me and just try to learn about it "after the fact"? I know I will want to back up the various nand files to help in the case of a brick later on but I am guessing all that can be done after installing the CFW and not just during the process like the guides instruct me to do, right? Edit: And what is up with sending off your 3ds to have it hard modded? Is that worth it?