Keep in mind that people were recording more than 48 lbs/min with the old 68hta. Some have complained about the spool of the new one, stating that they were surprised on how laggy it was. I don't believe FP ever verified this and I do not like to spread misinformation but it's has been said that the new 68hta utilizes the same turbine wheel as the new Evo x 18k turbo if people are familiar with those at all(?) it's also a pretty sweet turbo for the x platform.