I have a 23" black Excel. Personally, I love it. It is a little lighter than other ILF risers I've handled in the same length. But what is light for me may be perfect for you. I added a small counterweight for weight and balance but a bow quiver would accomplish the same. You can shoot off the shelf if you want, though, it is cut far past center. I'm shooting a CenterRest Flipper and because it's cut past center I can shoot Blazer vanes with zero clearance issues.
I've owned the Titan, DAS Master, several Gamemasters, and TAC Black Sheep. You mention the Titan and GM/ Dorado. Those are excellent options as well. The Dorado is similar in mass weight, Titan and GM are both a little heavier. The finish on those is also a flatter black. All have standard AMO sight, stab, rest bushings. Like you said, the GM and Dorado aren't ILF risers. That's fine for a hunting bow but I feel the adjustablity is an excellent tool for really fine tuning.
The good thing about trying the Excel is if you don't like it you won't be out much. But, I bet you'll like it. I know I'll be hunting with my Excel with 61# Extreme limbs this fall. Mine is fast, quiet, and smooth and I have honestly never shot a more accurate setup (for me).
Chris