You're a diamond member. Check out GM Wolff's "Champion Tactics" series on the Chess Mentor. He has courses on all the tactical motifs, the usual forks and pins but also more advanced stuff like interference and xrays and more importantly: how to set up tactics in your own games. The TT is fine (although I'm not a big fan of the timer), but how are you going to find tactics if you don't know what to look for? Just my 2 cents...
could anyone give me some advice to improve my tatic trainer level? im on house arrest and i play 5 hours every day and have for the last 3 weeks but i cant seem to get past 1100 ?? could anyone help me improve?