6th week in flowering should I make switch from HPS to MH??

I no I seen a thread on this a while back cant seem to find it. I was just wondering everyones thoughts on switching from hps to MH for the last 2 weeks of flowering??? I used MH for a month to veg then switched to the HPS. Both bulbs are a 1000 watt eye Hortilux... thanks

Hard to tell without pictures. Not all plants grow at the same rate.