Scottd,
This is the rod I use for Summer Steelhead on the Deschutes. It handles floating lines just fine. During the mid-day sun, I'll switch to a 15' sink tip (usually a type III). I'm using this with a Windcutter but I'm sure it would handle a Deltaspey just fine!
I have not used this rod with longer bellied lines.
Overall, I love this rod!
Driftwood