Don't judge a book by its cover, she's Natty @132lbs and is benching above our Max.

Follow her tips, benching for numbers is 70% technique and 30% muscles.

Then after you got form rock solid, start with this Bench More to Bench More | T Nation program.

Being at 315, you probably got ok to decent form, but check out that 40 year old 2nd grade teacher, we can all use some polish to our form or brushing up

After the first video,watch 201, 301, 401, and 501. Then watch some of her lifts.

Also check out Eric Spoto,
He's a good guy to learn technique from as well, not as perfect as Jen, but IMHO, 2nd best

She is the picture perfect bench press movement.