if you put all 180 minutes into durability then this will enact the cheat code that make all players; skys the limit.

tigerpark wtf I told you not to tell anyone!

Thanks.  You both have been very helpful. 

Bumping this up again, since I got no meaningful responses.  Is this a stupid question?  The Player's Guide indicates that practicing Blocking, for instance, improves Blocking and Technique.  If you use 20 minutes on Blocking does the system give 20 minutes of improvement to both Blocking and Technique?  Or 10 min each? Or nobody knows?

After you set your team practice, hit "SHOW REC" on the bottom of the Practice page. That will give you a rough idea of the skills you should be working on for each position. Adjust according to your personnel, and your own preferences.

No one knows how the practice time influences each individual attribute,when two or more are involved.  I would not really worry about the "split".  The advice above is pretty good about using the default to start with and adjusting from there.  How much you decide to practice will also depend on how your team stacks up.  Example:  if they are all slow...putting time into increasing their speed might be warranted.  If their TECH is all pretty good...maybe not so many minutes allotted to that, so that you can spend it somewhere else.  Truthfully, I set it and forget it for multiple seasons.

Thanks.

I set it and forgot it years ago.

+1 set it and forget it ;)

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