Simcoe is a great one to use in a single hop brew - particularly an American style ale.
I used Simcoe in a small batch (8.5 Litre) quite a few months back. Recipe went something like: 1 x can of Coopers Real Ale, water and 100 grams of Simcoe pellets for dry-hop. Simply mixed real ale can with 2 litres of water just off the boil, let it cool in sink ice bath for 15 mins, then added to fermenter, top-up with water to 8.5L mark. Brew was left in fermenter for total of 21 days - I dry-hopped with whole 100 grams of simcoe for the last 7 days. 2 important points to mention though: (1) fermentation/krausen in first 2 to 3 days will be extreme. So be ready for it. I wasn't and it cracked the tap on the FV. I've since made an extra & larger outlet fitting on the fermenter's lid, which I connect a 20mm hose into a half-filled bucket of water below it, which acts as my air-lock and krausen over-flow tube. (2) At 21 day mark the brew will be really hoppy. I recommend you leave it alow for 3 to 4 weeks in the bottle - in that time it will mellow very nicely and become a wonderful brew, albeit and potent one - not sure what the ABV was (I didn't take an OG reading) but think was around 6% - One small glass saw me feeling really relaxed
. Will be making another one of these over the Xmas break.
Cheers, Pete