Switching to LED from CFL late flower?

I just received 2x Roleadro "400w" COBs (200w actual each)and I'm currently running a 6 year old 250w feliz with 2 smaller CFL one 23w and a 45w on those Wal-Mart reflectors in a 4x4 tent but only have 2 plants that have maybe a week or two left. I only have 2 rope ratchets so I either stick with what I got to finish or switch over.

Not looking for a debate on the LEDs I chose.

Generally speaking: When the primary light source. (IE: CFL to Plasma, LED, etc.) is changed.

Find the recommended hanging distance and hang the arrays a little bit higher than recommended.

Hanging the arrays higher than recommended, gives the plant more time to adapt to the increase in density of light (aka: PPFD-Photosynthetic Photon Flux Density).

Awesome. Thanks! I wasn't sure if the change in spectrum might cause too much stress or trigger it to retard flowering growth and veer towards vegetative growth or worse.