Havn't posted in ages but I just had to!(As JC/BS myself.)
With the larger gem bonuses and smaller socket bonuses, until you start getting upgrades I don't know that it's worthwhile to chase socket bonuses.
For example, t8.25 pants are red/yellow socket with 12 stam bonus.
With agil/stam and def/stam, you're looking at 10 agil, 42 stam, 10 def from gems and socket bonus.
With agil/stam and solid.de, you're looking at 10agil, 66 stam. (-10 def, +24 stam)
With stam and solid.de, you're looking at 81 stam. (-10 agil, -10 def, +39 stam)
So, something to think about.
It doesn't work out that way though I also thought so at first. To have equal comparisons, either you have to include socketing the solid.de in another piece of gear in the first example or you're going to have to use a regular epic stam in the second and third examples. So what it really works out to is:
With agil/stam and def/stam (and a solid.de elsewhere), you're looking at 10 agil, 63 stam, 10 def from gems and socket bonus.
With agil/stam and solid.de, you're looking at 10agil, 66 stam.
(-10 def,
+3 stam)
With stam and solid.de, you're looking at 81 stam.
(-10 agil, -10 def,
+18 stam)
Orrrr:
With agil/stam and def/stam, you're looking at 10 agil, 42 stam, 10 def from gems and socket bonus.
With agil/stam and stam, you're looking at 10agil, 45 stam.
(-10 def,
+3 stam)
With stam and stam, you're looking at 60 stam.
(-10 agil, -10 def,
+18 stam)
The choices are more balanced when you look at it like this.
It's not like these are going to be the only two sockets you'll have in your gear. Even if you don't put the solid.de in the pants it'll go elsewhere and you'll still benefit from the extra +21 sta they have over regular epic stam gems. It might be since I'm a BS also, I have no trouble finding places to socket my solid.de's and still chase after socket bonuses. I mean, there could be zero blue sockets in my gear and I'd still be able to match up every single bonus if I wanted. I remember a thread earlier where the OP said that JC pallys were going to have a hard time using their Dragon Eyes properly in 3.2 since our T8 has only one blue socket.