Running MH and HPS side by side to save money?

I am using two hoods, would running a MH and HPS side by side work out alright for my ten plants rather then buying two of each kind; just run both throughout their entire growth cycle?

i say do it, the mixed spectrum from the mh and hps will be good for the plants..

Why not buy a bulb of each? That's less than $100

My only concern was that one spectrum wouldn't reach over all of the plants at once, in a 4x6 tent. Half of my plants only getting HPS spectrum for the most part, and the other half only getting MH spectrum.

Used to run them together years ago out of necessity.$$$.. worked great. improved yields.
We just kept doing it that way!!