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I don't know if this will help you, but I find it easier to use the ellipse drawing tool for safety circles> It is easier to see for me than using the brush (which is what you use). To draw in bases I use the trend line instead of the brush as well, I added arrows and made the lines thicker in yellow to make it clear to me that this is clearly a base.

thanks for the ideas.. i just tried that ellipse tool.. i might use that.. i like the highlighted circle