Anyone got any tips for the last slot in F2L?
I seem to either stare blindly, keep trying a multitude of the three cases or mess he while solve up.
I am finding that on the last slot none of the rules seem to apply, because I’ll end up messing up completed slots.
Am I losing the plot?
I will mention again what I think of as sliding a completed block along the bottom, then sliding it back after a U turn. This is how I do intuitive sequences without permanently ruining any of the three completed slots.
Hard to explain without a video or a cube diagram. But, let's try: Suppose the only remaining slot shares the R and F faces. Now, visualize the F face. You will notice that there is an easily seen completed "block" at the F and L corner at the bottom.
My point is that you can make an F' turn, and this block sort of slides (actually rotates, and actually, just part of the block) over to the RF corner. BUT, it is still on the bottom. SO, you are free to make any desired U turn. THEN, slide (rotate) it back with the opposite F turn.
When you start the sequence, you make a U move to either put a U corner piece you want to drop directly on top of that LF block, or a U edge piece you want to drop in the upper middle of the F face. Now, make that F' (or whatever) sliding turn.
Then make a U move so that when you slide back, you have created one of the two Simple Cases. Viola!
It gets really easy to see, believe me: U-move, Slide, U-move, Slide Back. Four moves and you are at a Simple Case. Four moves at most, sometime only three.
Doesn't have to be the LF block or the F face, of course. Actually, the nice thing is that any of the three completed blocks can be chosen. This slows you down at first, but should not be for long. It helps to realize you will NOT be dropping your target piece into the target slot, rather, down into where the block was before you slid it.
(Different and longer of course when your target piece(s) are not already up on U. So, bring them up and take it from there. Or, do it another way.)
Hope you can understand all that! And good luck.