A windfall of new loans has helped subprime servicers make headway on the growth front this year, a new Inside B&C Lending analysis of servicer replenishment rates reveals. But some of the market’s largest players also clearly have more room for growth in the months ahead. The analysis looked at 15 subprime lenders that also service the bulk of their production. Combined, those companies grew their portfolios at a 66.5 percent annualized pace through…