the SPL plugin is just a cut-down version of Transient Designer, which will remove all sustain, not just reverb.
There is a plugin which will remove reverb, though, called Unveil from Zynaptiq. It does a pretty good job, and the demo is actually pretty free of restrictions, as I remember. Kind of tricky to set up though.
Kind of surprising if you can't get a dry sound from a popular sampler like that, though, isn't it?