I'm confused--
Stinger, were you just opening up tons of Splenda packets?

Otherwise, as far as I know, there's only the one kind of Splenda--the granular that comes in a bag (as opposed to little packets). You definitely don't want to use the little packets, and the blend isn't SBD-safe.
I do find that my baking is dense, but I've always assumed that's because of the WW flour. I use WW pastry flour most of the time and add some extra liquid to recipes that seem to need it because the WW flour makes it drier.
On the other hand, I avoid trying to make super light and fluffy items because I know that it's not easy to make them with the WW flour, so I don't know how the Splenda could affect those.
When I started SBD, I read that using a mix of sweeteners will cut aftertaste, so I've always done that. A favorite is a mix of Splenda and Erythritol.
I recently found a great baking help in Wegman's Nature's Market that I've used a couple of times successfully. It's by NuNaturals and is called
More Fiber. You add it in place of sugar in a recipe (it has Stevia in it, so it's sweet), but it also has a ton of fiber, so it helps reduce the need for fat, makes things gel better (something sugar does well but Splenda does not do), and adds lots of healthy fiber. I really like it. I wonder if it might help "lighten up" the things you think are kind of dense,
Stinger?
