For $100 I'll sell you Fly High - brand name, good equipment, no questionable stuff. Your choice - but I'll be almost everyone on this board recommends a brand name. The worst decision is to buy it twice.
hold the rope in your fingers with your hands about 1 inch apart. Push your fingers together and the rope should "open up". When you release the rope, if it stays open, its specta. If it springs back into place, its not specta and will stretch.