A two-year-old, and somewhat controversial, proposal to allow lenders to pool high loan-to-value conventional mortgages into Ginnie Mae mortgage-backed securities has been resurrected and is actively being peddled on Capitol Hill by private mortgage insurers. Originally known as the Choice Initiative, the new legislative proposal is called "The First Time Homebuyers Act." Choice was promoted as a way to offer more lenient FHA underwriting requirements to homebuyers seeking loans above the FHA limit but below