I got some new 5S 5000mAh LiPOs from Turnigy and needed to remove the XT60s and replace them with EC5s. Everytime I kinda wish I had used XT60s. The EC5s I get vary in quality, so that whether or not the pins fit in the blue case is a gamble. None of these fit... I had use a prop drill to get them to paxs and use a touch of thin CA.
If it wasn't going to be a pain in the butt I wpuld swit h them all.