We did one coat before the cabinets were installed and a second coat, three weeks later, when the kitchen was 95% done. It worked out really well. The floors are finished to the walls, not to the cabinet edges. Also, the first coat had plenty of time to dry and cure. Plus, any scuffs or drips that the guys got on the floors in the interim were taken care of with the second poly coat. My floor guy scuffed by hand for the second coat and was really careful around the cabinets so we didn't have any splashes on the cabinetry. I'd definitely do it that way again.

The floor doen't appear to be sanded thoroughly. You need bare wood for stain. It won't penetrate old finish. See if you can find a Varathane EZV floor sander. It's a rental unit and, I believe, the best for a DIY floor job. For the water stains you might try oxalic acid. It's available in hardware stores. Follow the directions carefully. Minwax Polyshades is a tinted polyurethane. It's difficult to get an even color with it. Multiple coats will obscure the grain. Is there any reason you didn't want to use a stain and clear poly? If the floors sanded correctly only one coat of stain is necessary or useful. Also I would think that a stain as dark as Bombay Mahogany would do a pretty good job of hiding the water stains after you lighten them. I can't tell about a color match without seeing it. You could try your stain on a small area near the kitchen. If it doesn't look good then sand it back off and get another stain. Good Luck

I have white oak floors throughout. Pictures will tell us whether red oak was used. Please post a few.

With a bleached floor colour, it is hard to see the 'white lines' you are speaking of. Of course if you wanted a BROWN floor, then this is a big ol' oopsa! My biggest issue is the TIME BETWEEN COATS. And the TIME BETWEEN stain and first coat. Adhesion issues when things are rushed. And with Mega One, I WANT to see THREE coats. It is NOT their toughest finish. It works nicely for a family of 2-3 adults, no pets, no-shoes indoor policy. Even with a light traffic situation as I've pointed out, I still want 3 coats. BUT...sigh...the EXTRA MATTE finishes often create a HEAVY HAZE on the floor when you get to the 3-coat thickness. By the sounds of it, you need a redo (just because everything goes against manufacturer's suggestions - including the Bona Mega One requirements to use Bona-stain products). Please try to point out what 'white marks' you are seeing. The photo does not show that level of detail.