In my opinion, I would use the recessed lighting and other layered lighting that is in your plan. I would not add a centered light. I think you will have a cleaner, more contemporary look without the additional light. I put recessed lighting in two kitchens and was extremely happy with the result. If you feel more light is needed, you could always add additional recessed lighting in center of the wider room.

I go with a higher K in my workshop and not to worried about CRI. For my living areas, dining room, living room and bedrooms I go with a lower K but a high CRI is important, especially if you have natural wood in your home. Also differences in CRI and K may change the appearance of your walls, carpet, sofa , lampshades, portraits, etc... For areas that you want a true color go with a higher CRI. 80 is fine for a garage and may be OK in kitchen unless you have stuff displaying like art, colorful vases, collector plates, woodwork etc... Of course a higher CRI is always the better choice. If color quality is important, seriously consider something in the 90s. My kitchen at 2700K 80+ CRI?? bulbs that should be changed to a 90+ CRI 3000K in the future NO HIGHER THAN 4000 for kitchen 5000 workshop 3000- for living areas bedroom 2700-3000 You know a s I type this I realize that this is all subjective. Get some bulbs and test them and compare.

@che11e - you are right - you are not going to find anything at a big box store with a 4000 k temperature. They are made, but only by a few manufacturers. Most have a couple of choices that are somewhere between 2700 and 3000 or a 5000 Lowes seems to carry mostly GE light bulbs Choices in colors are Soft White 2700 k, Reveal 2850 k, Daylight 5000 k Cree- one of the two brands that I use has Soft white - 2700 k , bright white 3000 k and Daylight 5000 k Feit - the other brand that I use has the same offering in the general use lights Soft white - 2700 k , bright white 3000 k and Daylight 5000 k This information is generally on the box and labeled "temperature" I also looked at the HD website and they do have one standard light bulb that comes in a 4000 k and it is a brand that I am not familiar with. If you plan on getting any fixtures with integrated LED light bulbs they are almost all 3000 k. This means that it will look whiter than your other lights if you have 2700 k light bulbs in your other fixtures or yellow if you have 5000 k light bulbs in your other fixtures. I have not been able to find a single manufacturer that is making a ceiling fan with an integrated light that is not 3000 k and I have researched for months. So the color is choice 1 The other 2 things I use are lumens (brightness - amount of light produced) and CRI (Color Rendering Index). Most light bulb packages will provide both the lumens and the Watt equivalent and the temperature. Few are showing the CRI. CRI/color rendering index is a measurement of how well a light bulb renders different colors. The light waves emitted from a light bulb should be balanced, but LED is still a fairly new technology and not all lights emit balanced wavelengths, so different bulbs may not pick up reds or blues or greens as well as another. If you are used to 2700 k lighting 5000 k is going to look bright. 5000 k is like daylight on a clear day about 2:00 in the afternoon (Noon daylight on a clear day is 6500 k). Right before sunset when the sky is turning orange the light is about 2700 k When I first changed out all the lights in the home I bought it looked so bright, but after a couple of days it didn't seem so bright. Now it seems normal and I notice how yellow and dim other homes look. Not everyone likes the bright white light of a daylight bulb. I happen to love purples, violet grays and taupe. All of these colors get muddy with yellow lighting. I use 5000 k daylight bulbs. My sister in law has country style decor, cornflower blues and peaches and creams. She uses 3000 k light bulbs. My sister has a Tudor home and a lot of industrial and antique furniture and fixtures. Her home is decorated in fall colors, burnt orange, golds, greens. She uses 2700 k lighting. All three homes look good with the lighting that was selected for their homes and would not look as good with a different color light. Hope this helped make things a bit clearer for you.

I only use those wafer lights when there is no room for actual can lights. I like to be able to change bulbs out to get the exact color the room requires. Sometimes is difficult to ascertain that in advance. The 4,000k suggestion is not the solution for every room, exposure ot paint color. There are lots of variables to factor in. None, the less, get the undercabinet lights installed first and see the results. If you think they will have no effect on your ceiling lights you are wrong.