I'm not exactly a "new" new rider, but I've just done my first bike upgrade after two years.

I'm 5'2" (barely) and have been riding a Trek 1000 WSD 43cm with 650c wheels.

I just bought a Giant OCR A1 W. It's their XS frame. I think it's 47 cm and the wheels are 700c.

Fit at LBS by a young-enough-to-be-my-daughter woman who maybe enjoys chatting more than she does fitting bicycles.

I've ridden it four or five times, medium short distances (16-20 miles). I can't tell if my problem is the saddle, the adjustment of said saddle or the length of reach/stem length.

It's putting way too much pressure on my woman parts. If I really bow my lower back and straighten my elbows in effect pushing myself up and away from the handlebars, it puts the pressure on my sit bones where it should be. If I relax my arms and back to a natural-feeling position, the pressure goes right back onto the girlie stuff and I'm soon squirming uncomfortably.

Also, when I'm at maximum knee extension, my leg/foot extend in front of the vertical, and I'm wondering if this is normal.

The frame geometry on these bikes is different. Trek has a more or less horizontal top tube and the Giant's top tube slants.

So should I take it back to the LBS and see if they can adjust it for me? Do I need a new saddle with a cutout? Current saddle is more or less horizontal, which is about what I like. Tipping the nose of the saddle down might relieve some pressure, but I don't want to feel like I'm sliding off.