I mined ETN too. But all pools which i tried gave 10-15% less than WTM claimed. Also ETN price drops 10% every day. So every day i earned 12% less because pool and 10% less because price drop. 22% total. So i decided - ETN is not so profitable as WTM dispays. XMR is more stable.
Thank you very much anyway. You helped me a lot and you forced me to understand my problem deeper