Readers question 2: How do different drum hoops affect sound?

This is part of no less than SIX questions posted by my gorgeous girl Sophie about drum stuff. So to head it off we have a question, how do different drum hoops affect the sound?
So lets get down to the types of hoops first:
Single Flange: These are often found on vintage drums from around 1920-1940. They are often quite soft and are often seen having been bent by the pressure of the claws on them.They are often a soft brass. They are also found on vintage reproduction drums. They are the rarest type of hoop to find on drums nowadays. They are a very open sound as they restrict the snare head the least by only resting on the top of the head rim. They are also quite fragile as the brass claws that attach to the hoop are quite thin and over tension will cause them to snap. They create a very ringy sound and are the least focused type of drum hoop on the market. However they are also known as stick chopper hoops as the thin brass rim cuts into sticks and breaks them alarmingly quick. These are quite specialist hoops for the player who needs his drum to sing at the maximum level.
Triple Flange: The standard drum hoop. By far the easiest to make and available in large quantities. Arrived around the 1940s and quickly took the market by storm. They kept the drum with an open sound but with a bit more focus. They also were rolled outwards at the tip to stop them from breaking sticks so fast. They also negated the brittle claws on single flange hoops. These are the standard go to hoops for drums, they let a drum sing but offer some control.
Die Cast Hoops: These restrict and focus the sound of drums. These originated from the 1970s where they were designed to cut down the amount of ring of a drum. They dry out the sound of the drum and add more punch too. They also hold tuning better as they are so rigid and disperse the tension more evenly around the head. They are mainly used in snares for metal drummers for the increased attack and focus of the snare and the decreased chance of detuning during a heavy concert.
Wood Hoops: These are the most expensive types of hoops on the market. They are usually very thick and dramatically dry out the sound of a drum by adding extra weight and thickness to the drum heads. This creates a very dry sounding snare, but without creating too  much focus leading to a very sensitive and dry snare but with the side effect of reduced volume. This is usually used for jazz snares when articulation at low volumes are needed.

So there you go, any more questions and then please ask!