With extract you have to do something really wrong to get an actual OG more than a point from the calculation. Basically, if you follow the instructions you'll get what you ordered. It's common to get poorly mixed samples when brewing from partial boils. It's harder than you'd think to get a homogeneous mix.
Stop using so much caramel malt. Your beer will thank you.
(yes, Carapils is a caramel malt...so is Special B)
pujwI HIq Mild Ale
KPA Khitomer Pale Ale