Well, these are just my preferences, and I'd love to hear others. These aren't tasting notes persay, more of a preference.
My wife prefers dry, clean-finishing whites. She has a very acute sense of smell and taste and most wines have offensive tastes and smells to her. She prefers Pinot Grigio's with a pear or peach smell & flavor to them. Even a little hint of lemon or citrus will work too. Other than that, she honestly isn't high-maintenance!!
So, the trick for me was to try to bring this out with a kit wine. The only modifications I've ever made with Pinot Grigio's is with yeast, temperature, and time. By time, I'm not just talking about aging but also racking. The first couple Pinot Grigio's I made had a bit of a musty smell, which did mostly go away over time. For me (and by me, I mean my wife!), what seems to work best was to keep the Pinot Grigio off the lees as quickly as possible. I keep the fermenters at 75 degrees to speed up fermentation. I tried DC-47 yeast in one batch and it didn't seem to make a difference in the smell/taste of the wine and was very slow to ferment. I stick with the EC-1118 now.
5 days in the primary
10 days in the secondary
I rack the wine off the lees before degassing and clarifying. It doesn't matter what the instructions say, I rack it off. It takes longer to clarify, but my objective is to lessen the amount of time the wine has in contact with the lees.
28 days of aging and then I rack it again
14 days of aging and then I bottle.
So, of all the Pinot Grigio's I've made so far, the Grand Cru Pinot Gris / Voigner has come out the best. I've never smelled or tasted a wine quite like this and I'm willing to bet there are not a lot of people who have. I'm normally a dry red drinker, but I really like this wine. The tasting notes for it say the following, which I find 100% accurate: Extremely aromatic white wine that opens up with apricots and pear notes. Dry and medium bodied, it finishes on a refreshing fruit forward note.
So, I don't know if any of this is helpful, just my two cents.