i cant decide whether to workout my arms together or do bi/back and tri/chest
which routine seems better
mon-arms
tues-rest
wed- legs, shoulders
thurs-back,forearms
fri-rest
sat-chest,abs
sun-rest
or
mon-back,biceps
tues-rest
wed-legs
thurs-chest, triceps
fri-rest
sat-shoulders
sun-rest
i am looking to build size trying to bulk just looking for opinions