Investors liked the results, but questions remain about a promising new product line.Aircraft component and systems supplier AerSale (ASLE 7.62%) reported a stronger-than-expected quarter, but the company isn't reporting much traction yet for one of its most closely watched products. Shares of AerSale initially traded up 25% post-earnings before falling back to up 8% as of 2 p.m. ET Thursday.Strong core sales, but still waiting on AerAwareAerSale's core business is maintaining and selling used airplanes, en ...