For this particular grow, I vegged with GH nutes and am using the DG line for flowering. While vegging is an important stage in the growth process, I've found that I can get good results vegging with just about any nutrient out there. Your plant's needs during veg seem to be minimal and for me, the flowering stage is where a high quality nute line is key as that is when deficiencies and excess often occur. I just happen to use GH and botanicare for veg in this case.
Off camera here, I am also testing to see how DG nutes work with floralicious plus and possibly sweet. I'm not saying they're needed but if I have those products that I know I already like sitting around, might as well test them too. I have a feeling at the end that the DynaGro line will at least replace my Grow, Micro, and Bloom nutes from GH for the sheer fact that DG's pH stability makes my life a lot easier.