Blueberry extract question

Hi....First time making beer without a kit, I am making a recipe as follows:
A Maple Wheat Ale, as found on p. 137 of the book Clone Brews, Here is what is listed:

9.25 lb. M&F wheat DME (55% wheat, 45% barley malt)
1/2 lb. maple syrup
1.5 oz. Willamette @ 5% AA (7.5 HBU) (bittering hop)
1/2 oz. Willamette (flavor hop)
1 tsp. Irish moss
Wyeast's 3056 Bavarian wheat yeast OR Wyeast's 3944 White Beer yeast
1/2 cup corn sugar
1/3 cup maple syrup

I'm only using 9 lb of the M&F wheat DME. I bought some LD Carlson Blueberry Fruit flavoring at the store on impulse. Three questions:

1. If I add the blueberry flavor to this brew, will it work out alright, or do you think the taste will be ruined?
2. When should I add the blueberry flavoring? I was thinking of adding it to the secondary in the amount listed on the bottle, is that OK?
3. Should I refrigerate the extra blueberry flavoring after opening? (I dont imagine so, but just making sure)

Ok thats, all i've got...thanks ahead of time!

I'm not a fan of the extract flavors (IMO they taste like soap), but they are best used in the secondary or just prior to bottling.

homebrewer_99 said:

I'm not a fan of the extract flavors (IMO they taste like soap), but they are best used in the secondary or just prior to bottling.

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Agreed. If you are using an extract, you aren't going to get much in the taste department - it's more for aroma. If you do use the extract, add it in right before bottling/kegging.

Maple syrup on blueberry pancakes works. I'm not a fan of wheats, but the best one I've had was blueberry. As mentioned, fruit extracts can be weird. I'd draw a pint before bottling and add extract a drop at a time, until the right level was reached. Then you have to figure out how many drops to the ml/teaspoon and dose the bottling bucket.

add to the secondary and go easy w/ it, and if thats not enough add more at bottling