DaFlight mod 1.8, 1.7.10, 1.7.2 is a LiteLoader-based fly/sprint-mod with a simple fullbright feature bundled in for good measure.

DaFlight Features

• Fly Mod - a highly customisable flymod. Includes 3 diffent flight modes, 2 adjustable speeds and fine-tunable settings, like momentum and strafe-rate.
• Sprint Mod - run and jump around like a maniac. Also has 2 adjustable speed modes.
• FullBright - a gamma boost that lights up even the darkest of places.
• Compatibility (fingers crossed!) - DaFlight does all it needs to without touching a single base class. This 'should' help ensure compatibility with as many mods as possible (providing they're compatible with LiteLoader). This includes Optifine and Forge (at the time of testing).
• Server-side Management