FYI... No, you don't need JPEGs to "see what you are working on".
Install FastPictureViewer codec on your Win7 computer and you 'll be able to "see" RAW files.... and can stop having to capture RAW+JPEG.
$10....
https://www.fastpictureviewer.com/codecs/FastPictureViewer codec will enable viewing almost any RAW on almost any version of Windows. I've used it with Canon, Pentax, Olympus and Nikon RAW files. It also allows you to view other types of files such as TIFF, PSD, etc. (It's better than the free Nikon codec, because that ONLY works with Nikon NEF files.)
Once the codec is installed, images can be seen in Windows Explorer as thumbnails (various sizes may be possible, depending upon Windows version).
Images also can be seen enlarged in Windows Picture Viewer... RAW will appear somewhat lower contrast and desaturated because Windows isn't color calibrated. But it's good enough to check focus, composition, image content, etc.
P.S. It also may be a bit misleading to "judge" RAW image files based upon a JPEG produced in-camera. All digital cameras take RAW image initially. When you set the camera to save JPEG, to produce that they essentially are doing a quick RAW conversion according to the settings of the camera: contrast, sharpening, noise reduction, saturation, etc., etc. The result may or may not be what you would have chosen, had you done the RAW conversion later on your computer. Of course, you can change the RAW to taste, since you're capturing both RAW & JPEG. My point, though, is that the out-of-camera JPEG may or may not be a very accurate representation of the image. That JPEG has been "modified"... maybe only a little... maybe a lot!
FYI... No, you don't need JPEGs to "see what ... (