It's about time it looks like a deck

I'm finally able to use the Ipe wood for the deck. It has acclimated, and have now learned that I have a sensitivity to Ipe dust - like a very, very, very bad sore throat from the flu. Realizing that, it's dust mask time. I had heard of exotic woods doing this, but I had never experienced it. It's nasty.
Of course it rained before I could attach the first board.

I was able to finally get moving a little faster. They make a handy tool for bending boards together so they look straight and show an even gap. 
I made the gap 1/4 of an inch with some little spacers I made from some scrap 1/4" plywood and leftover dowels. You can see them below sitting on the plywood. They just hang between the boards and you can push or pull as you please.

In order to look professional, I only put a few fasteners down to assemble the deck boards more efficiently. After all the boards are down, I'll snap a chalk line and drive the remaining screws so they line up. Use blue chalk NOT red - red doesn't go away.

A mandatory decking tip is to stand and put your weight on each board while driving the screws. It will help keep the boards flush to the joists. Once all the boards have been screwed into place, the whole deck is now rigid enough to remove the temporary support structure.
Notice I leave the boards long at installation. I will trim all at once to keep an even cut line.

While all that was going on, the foundation wall was formed and poured!
Nice.