I did a search for the topic but only found older threads on the topic but none that addressed this part of the subject. I was looking to buy an electric toothbrush and have decided on a Sonicare. Now the question I have is that with such a broad line of models what difference do they really have between them at the end of the day? Clearly some have more timers or sanitizer functions but in terms of performance and improvement in gum health how do they differ if at all? I am specifically wondering if I should go with an Elite model or a FlexCare model. Thanks in advance all!