No input on the GL2 but have experience with the SBR 812C and the SBR 752C. The difference between the two is 6 inches and I would go with the 752 at 6'3". In fact it is one of my favorite sticks, great accuracy in close or it will launch when needed.For a shorter stick it will go head to head with the 812 with plenty of backbone and is great for using the underhand cast. My 812 has a Calais 100A and the 752 has a Antares AR mounted on them and I think you can figure out which one gets the nod.......