Just to post , an obvious difference to anyone who has tryed both ( but maybe helpfull for those thinking about trying them ) the 650s are much larger pill. Harder to swallow. I notice they tend to be cheaper , but personally I find the 10/500 combo to work much better. Mental????? probably so . But they just seem to do the trick better .
Tansun
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"Madam Meanness"
---------where theres a will, theres a way ----------