How many "Slow Solves" should I do?

[ChaozCubing]

I've heard everywhere that you need to do slow solves to improve look-ahead. I have just about.... none.
So I do cross on white and yellow (I average 4-6 seconds on cross), intuitive F2L (average 15 seconds) I know 2-Look OLL with a few 1Look OLL algs (average 4 seconds) and Full PLL (2-4 seconds: depends on PLL) and My transitioning from cross to F2L is pretty bad. I average 26 seconds with a PB of 18.05. My overall question is: how many slow solves do I need to do to get faster? like a slow solve average of 12 twice a day, or a slow solve average of 100 each week for 3 weeks, or what? I'm trying to become sub-20 by the end of this year's summer, but I need help! Thanks!

 

[theROUXbiksCube]

when ever you don't have a timer, i do slow solves when im outside and don't wanna time with my phone and just hand scramble, you should do as many slow solves as you think you need to get a goal done (more efficient solves, less pauses, more lookahead, etc.)
My POV on slow solves is I should learn something new by myself while i do an average of slow solves (a new insert, a pll from a diff angle which flows better, etc.)
slow solves really help, while i was in the 1:00-25 all I did was slow solves and when i timed myself, I was solving in ~25 second

 

[wontolla]

You need to do 240 slow solves a week...
...sorry, just being sarcastic.
There is no number, really. Don't see it as a chore. Just enjoy cubing. Do as many slow solves as you want. The next day do whatever, fast solves, slow solves, etc.
When you do slow solves, think about the pieces, look at them come and go. And just forget about the timer.
During F2L, solve a pair, but before you insert it, look at any other corner, then find its edge. Just look at how those two pieces move as you insert the pair.
After some time, you will see a corner and an edge, and your hands will know how to move to solve them, so your eyes will be free to find the next pair.

 

[pdilla]

Not much more I can say that hasn't already been said.

Whenever you find yourself walking about or something, bring your cube with you and just experiment. Play around with F2L a bit, fiddle with EOLS insertions, etc.

 

[King Mike]

I do slow solves everyday, no specific number.

It help a TON to make F2L muscle memory.

I slow solve especially when I learn a new algorithm.