Just be aware using a cheap optical chrono your results will be consistent but not necessarily accurate.
For example on the same day you might shoot early morning and get 2647, 2655, 2638fps.....then later same day you might shoot same load and get 2700, 2695, 2715fps.
Given if both sessions shoot the same POI in reality probably nothing has changed, other than light conditions, possibly closer or further from the chrono, the chrono could be at an angle slightly just as a few variables. But as long as your ES and SD stay consistent I wouldn't worry if the displayed speed varied between sessions.
Always use drop at a distance to verify velocity and bc or find someone friendly with a labradar.
Other than that if your having fun.....have at it. Just be careful working up towards max pressure as I'm sure your already aware.
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