AlphaSheep
Veteran
I also can only plan out two of the cross pieces in inspection because it takes me too long.
Doesn't matter, do it anyway. Even if it takes you 2 minutes to plan out a cross, try it. You'll get better at that very quickly with practice. Also, don't bother timing your solves at this stage. Take time to plan out how you want to solve your F2L pairs more efficiently. It doesn't matter how long you take, as long as you're not wasting too many moves. Speed will come naturally as you become more and more familiar with the cases.