RE: Muscular development cyberstore
Hi mate not used it. I'm guessing you're UK based so the supplements are literally half the price that they are here, but remember you'll be hit by shipping costs and customs duty - you'll find out shipping costs and times when you go to the checkout, before you have to pay anything.
Since it's related to the magazine they most likely will not "mark as gift" and low value etc, meaning you will be hit by the customs duty.
Many people here that order from the US use Nutraplanet and Islandsupplements as they can avoid the customs duty in many cases. Also ebay international where it's small businesses and sometimes individual sellers, they'll be more than willing to mark as gift and low value etc to allow you to get past customs.
I hear also that sometimes it depends on whether it is Fedex (bad choice) or USPS (thumbs up) that are responsible for delivery - so maybe ask before you buy
hope that helps