I've been holding off on finishing the beams because of my drill. It is corded and that requires me to not be in the water. Our neighbors have a dingy but it's really hard to do anything while sitting in it.
I've considered just getting a battery powered drill but I really didn't think it would be powerful enough to drill through 2 2xs and a piling. Bit they aren't very expensive so i thought I'd give it a shot.
Man oh man, that little drill is a beast. Drilled through everything like butter.
Finished up attaching the beams. Pretty happy everything is pretty level. Carried my really heavy 2x8x20 stringers and stacked them on the beams. Pretty productive day.