Hi Mic,
PM sent, for everyone's benefit;
The GT77XXXH is the better rod of the 2, the 75XXH is a fine rod, but the former is better casting and is my personal choice.
I used the 77XXXH at Bugatti recently. Whilst the rod is rated to PE12, and can no doubt handle it comfortable, I used PE10 Varivas which suited the terrain at Bugatti.
The 77XXXH was so powerful, it can handle everything I was giving it and probably more. I mainly used drag settings in the 15-16kg, which is at my upper limit, if I changed technique, I felt the rod had a bit more. What impressed me most was that when I pulled, the fish came.
In addition, the HOTS are better built than some others, I flattened the stripper guide a few times, but due to the double over bound construction the guide was simply straightened and not ripped off the rod as a few guys experienced with other makes.
Regards
Andrew