The circle should be at the beginning. Placing it at the end actually reduces usability as they're all in different places. Placing it at the beginning will also be familiar to the user as it will be the same as in other applications.

Are you using an OptionGroup or individual Option Buttons?

>Can anyone please give me ideas on how to lay out an option group? Two pics attached. First is design time in the form designer - all spacing is as I want it. Second is compiled - all spacing goes out the window! What am I doing wrong?
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>Many thanks!!