Brian123 I tend to agree with the thoughtful responses from the experts above that it is generally better to prioritize GMAT-specific questions.
Personally, I only used the LSAT mocks for cross-training after I'd done thousands of official and unofficial GMAT questions multiple times, and many GMAT mocks. As
AndrewN has often mentioned, re-dos of problems that you found challenging in the past are often underrated and should be a high priority in your prep. I approached the LSAT mocks with the competitive mindset of playing a fun game, and feel that this cross-training challenge helped a bit in improving my overall verbal skills and mental toughness.