Pimoroni were saying their heat sinks only drop the CPU temp by 2 degrees.
I'm using their FanShim and it's dropped the temp by 30 degrees. Low profile and quiet.
I had to wait 2 months for new B+'s from RS. Doesn't look like they're meeting the terms of their licence....explains Raspberry Pi Trading CEO Eben Upton. "They are required to keep the product in stock"