I was wondering if anyone knew if the Baby Trend Flex and Lock infant car seat would fit into the Instep Safari swivel double jogging stroller, or the Tike Tech X3 (with their adapter)? Instep said their double jogging strollers don’t fit car seats but in one review someone said their Graco worked. Tike Tech did say they have not tested Baby Trend car seats - so I really need to know if it would fit their adapter or not.