Rick, indeed that spotting is one thing that I really liked with those two cultivars, so thanks for the explanation of how this can be achieved. 'Rudens Ogle' should also with increased bulb size develop a large number of flowers and secondary buds.
Zuzu and Connie gave invaluable advice on how to enter the Latvian names as correctly as possible in the database as I was unsure of how to do it and had to ask in the Plant Database forum.