I would stay with the solid for your application. 1800$ for a small HP gain is only worth it if you are trying to squeeze every last HP out of a combo.
For what its worth, I somewhat recently switched from a small solid roller (248/254 duration @ 0.05) to a Hughes solid (264-268 duration @ 0.05) with edm lifters on my small block 408. I made the switch because I would have to upgrade my rockers if I wanted a bigger roller cam, but I could go bigger if I went with a solid cam (lower spring pressure). The roller cam motor was 10.8:1 compression, the solid cam motor is 13:1, everything else is the same. In similar air, the car went from 10.7's (roller) to 10.3's (solid).
