Steam!!!

I use the lowest steam setting.

steam

Press with no steam

No steam unless sewing somewhere else and steam is on. Actually no water in my iron just in a spray bottle for stubborn wrinkles. I do however use Best Press when I iron initially so that is still there.

steam

I'm a steamer, and now kind of sorry. I covered my ironing surface, stupidly, with some fabric, that I assumed was prewashed. I steamed a seam, and the color from the fabric I used, transferred to the white of the block.
I went and bought some of those 'color catchers,' we'll see if they work.
Regardless, lesson learned

Lots of steam!

I've done both, but prefer steam...

No steam here. I, also, feel that it distorts fabric.