Despite its expansion-driven profit structure and multilevel-marketing format, the 'Cash-4-All' pyramid scheme is not a pyramid scheme, electronically dispatched literature touting the scheme boasted Monday. 'Don't fall for those ripoff pyramid scemes [sic],' read an e-mail sent to Hartford resident Larry Grosvenor, 'This is the real deal!!!' 'This opportunity looks interesting,' Grosvenor said of the pyramid scheme, which asked him to add his name to the bottom of a list, then send that list to six other people. 'And the best part is, it's not some pyramid scheme.' 