Pretty much leveled solo to 50 with an Immortal Jug. I used Vette only and some areas were a little harder than others. The only two fights I had any real trouble with were Baras and an Elite in a cave on Voss. I leveled from 47 to 49 for Baras and had no trouble. Used a group for the Elite. There was no other point in questing were I felt I couldn't just slug it out with a mob. Some trouble might be just not using all the CD's available. I constantly forget about relics amongst the several skill CD's we have.