will lead to a rounded back
your ass should be down and under you not out in front..once you get to a heavy enough weight hes gonna wind up straight legging it possibly losing his arch and dumping it all on hius low back..
there are too many suggestions here and prolly just confusing you.. i cant link it up but go here for a ton of videos..
www.irongame.com
good pullers that i would watch
andy bolton
garry frank
ano turtianen
Ed coan
all styles are slightly different but if you look and try to copy one of those people youll be fine..make sure their body type is somehwat similar to yours
bolton/frank are rather large men ver 300
ano is very lean and lanky long arms and tall 6'4"
ed coan is 220lbs and stocky and one of the best pullers ever