Hmm for a 30 gal that sounds like it should be sufficient. I'm assuming you've already tested for nitrates and phosphates and what not?
Sometimes there can be allelopathy if you have soft corals too close to SPS but i wouldn't think it would affect everything on a broad scale. . . You'd probably see some degredation in the SPS not just lack of polyp extension.
Its good you buy what you like, but some species are more hairy than others like the millies

I have one in my tank that I dont know what it is. Guessing some kind of acropora but I don't really know.. it only has large extension on the tips but the rest stay tiny.. but i have a big pink milly that is hairy like my cat.. (well not that hairy but you'd almost think you could touch it and it would feel soft like that)
Have any pictures to better show the extension? also how long have they been in the tank?
When I acclimate I tend to float for 20 mins and then drip until the water at least doubles in volume from the original. If it came from a successful tank I doubt the parameters are too too off but I like to do everything I can to help the coral feel more comfortable when going into the new tank.
Not sure what to tell you failing all that

Hopefully some folks with more experience can chime in - but as far as your two parts go just follow the directions and test often until the parameters are where you want them to be and you should be okay
