Creditworthy buyers are being constrained by dated scoring systems, according to a study released this week by VantageScore Solutions, which says there are benefits to Fannie Mae and Freddie Mac, as well as consumers, if a new model is adopted. The enterprises could increase their revenue while expanding access to mortgages to a more diverse group of consumers. The credit reporting company has been working to get Fannie and Freddie to embrace a new credit reporting system for years now. Its new report comes on the heels of the Federal Housing Finance Agency comments in its 2015 scorecard directing the GSEs to look into potential alternative forms of credit scoring.