2 lights vs 4 lights???

hello,
i have a question about light movers. originally i was planning on using 4 1000w HPS for bloom and 4 600w MH for grow on a 4x8 table, but after hearing about movers i was told i can use 2 1000w HPS and 2 600w MH with the movers and it would be just as good. is this true? any feedback will be appreciated!

Light movers?
They move the lights?

haha.

using movers doesnt sound like the best option. why spend more time moving around a bulb to light up the area that two fixed bulbs could easily take care of?

A light mover can increase your effective grow area by about 50% so you need to look at it from that perspective.

i found this pic that member widow maker uses. he basically has the same setup i was planning on using and he is using movers also, so i think i am good...