kaiyen,

I agree with Jimmy. I don't think you need to be thinking about using diamond spray this early into your foray into straight razor shaving. I'd wait about 6 months before using diamond spray on another strop--not your everyday strop--to refresh the edge of your honed razor.

From your post, you're already getting pretty close shaves. For now, focus on your stropping and shaving technique, especially around your chin. That's a difficult area for most shavers anyway.

Just my 2 cents.