deadlift being my fave training

have few points to ask/make

i do mine from floor but how do you do yours
ie
from floor
from rack (like dorian )
or maybe just off ground


another thing i see all the time seems like loads of people do

but bouncing the bar from floor when deadlifting
to me it looks like injury waiting to happen
i always put mind down and lift it DEAD from floor i feel that first explosion of energy is the nuts

whats people thoughts on bouncing the bar off floor

i see people bounce and one side bounces first then the lift is wonky i think this is due to hand placement

also straps
when do you use
i allways use at bigger lifts where i just cant grip it i try untill i just cant or slips
some use right from the off