Fw: Alert kasha Yevamos48b proves...

Yevamos 48b proves that geirim are punished for not converting earlier from the fact that Boaz tells Rus that she gets full reward because she came to convert immediately. But she didn't come immediately! Rus 1,12-Rashi- She waited to convert until after Machlon died and Rus 1,4 says that she was married for about 10 years. Clearly she waited 10 years to convert so how can the Gemara in Yevamos say she converted immediately?