Remember the intent here:- you're flying VFR.@CraigVMN ,really my dear fellow flyer,300ft and cant see your drone ,with all due respect maybe a visit to an optician might be in order i have not got the most amazing eyesight ,but i can see my Mini drones up to at around 800ft ,and my MPP up to about 1200ft
Its not just being able to see the drone. Its about being able to see the 3D space (ie depth perception) all around your zone to identify hazards and conflicts.
Being able to see a tiny dot in the distance with no perception of depth all around it isnt really VLOS/VFR.