You're asking slipper nuts if we have advice on growing phrags? That's just begging for a novel.
Do your research on which phrag species are water loving (most) versus those that are not (caudatum group). Hybrids are obviously tricky if they contain parents from both groups, but know that most plants will tolerate frequent watering, and in many cases, they do really well sitting with water in the saucer at all times. Your Silver Eagle will appreciate staying wet, and in my collection, it would be allowed to sit in water at all times.
If you're successfully growing and blooming multifloral paphs, then phrags are going to do just fine for you, provided you keep their roots wetter. Overall phrags prefer brighter conditions, as enjoyed by many multifloral paphs. Your temperatures sound good. Water quality is important, as phrags will develop leaf tip die back more easily than paphs as a result of water that is poor quality or from over feeding.
Again, this is entirely generalization, so there are exceptions. The major differences I see between paphs and phrags? Well, I already mentioned the roots. While phrag roots look similar to paph roots, phrag roots are pliable, wiry, and strong. They also tend to grow more roots than paphs, or perhaps they just grow them much more quickly. In general, phrags do have a much higher metabolism. Compared to many paphs, phrags grow like weeds. Because of their vigor, many phrags can bloom multiple times a year, this is likely in hybrids. The leaves are thinner than paphs, with pointed tips instead of the more rounded leaf tips of paphs. I would assume that paphs, with their thicker leaves, will handle lower humidity better than the average phrag, but to be honest, I don't know for sure. I do know that phrag flower spikes develop quickly. When it comes to the flowers, phrags tend to produce more flowers per spike, but the individual flowers don't last as long (by far). I've seen flowers that barely last a week, but 10 - 20 days is about average. The flowers fall off the spike suddenly, and without really showing any signs of aging. They look perfectly good, but one minute the flower is on the spike, the next minute it's laying on the floor.