Frame 2 simple granular / looping sampler
Sometimes simplicity is what you want in a sampler.
Frame 2 gives you live control over a sample's loop start and end points, either by dragging on the waveform or mapping MIDI CCs to the knobs.
Most controls should be self explanatory, and the inner structure is neat, clean and conducive to hot-rodding.
Frame 2 is part of the Reaktor sampling pack available at reaktortips.com