You did not mention the speciality grains.
More ABV is not a problem ever until it becomes one.
Just so long it does not push it beyond the style and taste you like, I would do it depending on the grains.
I really don't see 1 lb making that big of a change unless it was .5 lb of roasted barley or something along that lines. I have found out that 1 once means 1 once on some of the stronger grains.
In Primary: Belgium Chimay clones.
In Secondary: Braggot, pale ale, end of the world white.
Conditioning: Mead, Cider, braggot, Belgium Wheat.
On Tap: Clones, Chimay Blue, Red, Porter, malted cider.
Bottles: Far, far, too many to list.