In reply to Liam Taylor:
I wouldn't read too much into the test result. Lattice are not fabricating the results but they are selling the concept of remote assessment and training plans. It is helpful for them if customers believe their tests are valid. Lattice do not divulge the predictive power of the test and it is pretty clear why they don't. The published huge variation in results between folk climbing the same grade suggesting this test is not a great predictor or benchmark. To be fair to them, they have eased back on their “data driven” claims more recently.
Your result, supposedly too weak for the grade you climb, is repeated in almost everyone I know who climbs outside and is not a fingerboard fanatic. I conclude either hanging from a strip of wood is a poor predictor of performance on rock or the population self-selecting for Lattice assessment is unrepresentative. Probably a bit of both.
Your best onsight grades were 7b and E3. This is a bit of a disparity and suggests finger strength was less of an issue than factors such as your head game and tactics in trad. climbing. These factors may also apply to sport climbing. Fingerboarding in particular and remotely assessed training plans in general seem unlikely to address what appear to be your major weakness(es).
I’m another who shouldn't be able to climb the grades I do according to lattice finger testing. I’ve just got back from Siurana where I failed on El corridón de la muerte (7a+), which is a boulder problem on small glossy holds. Some coaches might have me doing lots of fingerboarding to make up for my ‘lack’ of finger strength but that would be missing the point. I could piss the crimpy crux on top rope after a short amount of working but my head completely let me down.
I do blocks of fingerboarding intermittently for general strength and conditioning to reduce the risk of injury. At my grades (7a-b, E3-4) I don't find fingerboarding affects my performance. I don’t climb better when I’m stronger on a fingerboard. What I hope it does is enable me to climb with less likelihood of tweaks.