exactly... try one..if it doens't work try the other..
number one killer of great triceps.. OVER TRAINING!
you don't work your back or chest or legs twice a week.. so why would you have a seperate arm day after all your pressing movements!
triceps only need one or two exercises a week with no more than 6-7 total sets like biceps and that's IT!
Frequency is like exercise selection, try each for a while then decide. Once a week wouldn't cut if for me-2-3 days for complete recovery's enough, then hit it again. There's no proof that hitting a muscle 2 or 3 times a week with low or moderate sets is overtraining, that's just another theory that accompanies today's trend of less training.Most of the top BBs of the last 4-5 decades hit the muscle
twice weekly-Coleman, Oliva, Schwarzenegger, etc. Schwarzenegger thrice weekly precontest.
Just as with exercise selection, you have to try each approach for a while and see the differences.