I have Paradigm Studio 20s and CC470 in front (v3). I am thinking of in-walls for surround and rear (mounting a normal speaker is not an option). I noticed from the specs that the tweeter in Paradigm’s SA line is different from their Studio v3s. It appears the SAs use the older tweeter found in the Studio v2s. I have heard the SA-25 and thought that was quite good but not as nice as the Studio 20s I have. I realize matching the fronts is important and matching the surrounds less so but would like to hear from others that may have this combo and see what they say. In other words, if your system has a mix of SAs and Studios, v2 or v3, please comment on your experience and satisfaction with them. Thanks. p.s. I emailed Paradigm and they will not say if they are revising their SA line anytime soon.