Yes, don't pay attention to loads you get off internet forums. You have no idea whether I'm someone with 40+ years experience and zero mishaps, some clown who believes published loads are intentionally too light "because of the lawyers" or a sadist who wants your new user name to be
SSGOneEye.
Use published data. If you don't have relevant published data and you're not in a position to go buy a different manual, then check out the Hodgdon reloading site. They're the people who make 700X.
http://www.hodgdonreloading.com/data/pistol
Both Hi-Skor 700X and 800X are excellent powders, but do not meter well so make sure to check weigh your throws to ensure they are correct. When I use either of the Hi-Skor powders, I set my powder measure to throw light into the pan of the balance and then I use a powder trickler to get to the proper weight. Yes, it's slow, but if I wanted fast I'd use a progressive press and a different powder.