yes take a little off here and there, and take a bit more off the next week or two, you got the right idea to get light to those flower sites,
the reason i suggest breaking it up is you dont want to stress your plants out, they are doing good and it is a way to send smaller shocks to the plant. some people do it all at once some times with results of a droopy looking plant. then take it as a deficiency , it is just like feeding nutrients a little goes a long way. hope this helps.