Well just to let you know how I sure I am... the first time I did a softmod there were no installers. Not only were there no installers there were no prepared packages. The whole process was manual and required you to obtain the fonts, get the signature from them, sign the hacked fonts, do the replacement, sign a bios loader, put it into place, and then manually load your dashboard and whatever other software you were going to have on there. This was when the exploited game saves were brand new and people were bricking units left and right. Luckily I have a chipped box that I was able to use in case I messed something up with the non-modded one and that left me room to experiment. I did that whole thing using my HD cables. Man how things have changed with these installers. What took me hours to do now takes 5 minutes and you spend the whole time watching progress bars. So go for it. No worries. Btw, what I use is the exact same installer your using.