I too find the skewed entries (as in 3) a little mind-bending at times. I've found the best way to deal with this is to extend the lines on either side of the three outer cells of the radial to the centre circle.
(In the good old days of what I like to call "dartboard grids", before there was a thematic element to be found in the innermost ring and letters to be removed from clues to provide a definition of it, radials were always in groups of four, leading to 36, 40 or 44 clues. In those grids, the first three cells from the circumference were separated from the next in the group, as in this puzzle. Then, if I remember correctly, the next two rings had two cells ā the first clockwise serving the lower numbered two cells in the group, the second clockwise serving the higher numbered cells. Finally, the innermost ring would have one cell serving all four radials in the group.)