I have absolutely been having issues tanking on my pld. I do the same combos I usually do but it's mostly an issue keeping hate on group mobs. I noticed it most in Tam Tara hard mode, where there are 2-3 monsters connected by a line to another monster. So I go in there with shield lob and spam flash and do the mp drain move that I can't remember right now and I'm still losing hate on some of them.

Either I lose one or two or I'm really struggling to keep them all. I even had the healer taking hate off me and he could not have been above i90. At the time I was i92 and all I could think was that I guess my dps friends are just much better geared then me and that's why I'm losing hate but they are about i95 or i96.
I would think I would still be able to keep hate effectively at that difference. I've since tried to raise my gear as much as possible but I still feel like I'm having trouble keeping hate. I'm now i94 or i95