A great way to think of gate width isn't so much about how wide you actually are but your speed. If you're moving faster than the boat in your glide which is what you should be doing, you know you're in the right spot. The key is staying faster than the boat all the way up to your turn in. The line shouldn't be tight but also shouldn't be super lose. I like to use the word taught. From that point we should be able to turn in before the line gets tight right as the boat is pulling away from us. By doing this we're putting ourselves in the best position to accept the best connection to the boat and the ability to work before the boat through the course and not behind it. Being narrow you can still run short line, you're just choosing your line through the course. Its a fast, hard line instead of having space, time and being flowy. There's probably a better way to explain this but this is one way to think about it.