Scientific Reincarnation Research
As far as I'm aware, experiments of Dr.Ian Stevenson are referred to by Buddhists to convince materialists &amp; the followers of monotheistic religions that there's a Samsara. There's no intention of getting them to believe in a soul. The approach isn't perfect as you have pointed out. But it could be effective for monotheists and those who refuse to accept anything other than what scientists say. Putting Anatta into the mix can make it too confusing for newbies. So as long as the emphasis is put on Samsaric existences, it should be ok.
A question related to memory and persistance is answered here.