I know this was covered in old post, but I wasn't paying attention. If I run a 15 tooth sprocket on my pig, what is the differences over the stock 14 tooth gearing. My friend tells me he gets about a 3 mile increase per gallon and is faster on the top end. Maybe I'm backwards in my thinking process, but wouldn't it give you the opposite effect? It seems like you would run at a higher rpm and be slower on the top end.