there's really two questions in here, which are not directly linked and so i want to explicitly split them out. the first is about more than 20 minutes in a category. there are some diminishing returns, but they are fairly small. you'll see significantly better improvement with 30 minutes in a category, compared to 20, and this is true regardless of the potential remaining. well - you might not actually SEE it, depending on how little room for growth is left, but its happening all the same.
the second question is about the rate of return on an almost-maxed category. the way i think about practice planning is there is basically a curve that sets the return on investment against potential (remaining room for growth). this curve is essentially fixed and un-changable. you get a lot of return per effective minute practiced if there is a lot of potential left, and a little bit if there is a little bit of potential left. there's not much difference between 80 points remaining and 30, but it drops pretty significantly from 30 all the way down to 0.
all you are really doing from there is contributing an effective minutes practiced each game. maybe you need 20 minutes effective practice to go from 40 points remaining to 39, and maybe you need 400 minutes effective practice to go from 3 points remaining to 2.
effective minutes practiced would really be a combination of practice minutes, work ethic, and minutes played, minus the constant value of break even minutes required (essentially 7 per category, 3 for lp/per). so a guy who is playing 25 mpg, practicing 20m, and with 80 work ethic, those numbers run through a formula that roughly multiplies the practice minutes by a work ethic modifier, then adds the practice minutes multiplied by a work ethic modifier, and then subtracts the break even minutes. this might convert to say 22 minutes effective practice. then he gets 22 minutes of effective practice worth of gains - so if he has 40 points remaining, maybe this gives him 1.1 points of growth (using the above made-up but not super unreasonable numbers with 20 minutes required for a point of growth). if he has 3 points remaining... he gets whatever it is, 22/400 points of growth. if you increase the 20 minutes practiced to 30, maybe he gets 9 additional minutes of effective practice (perhaps 7 from the 10 minutes at break-even work ethic, but because of his high work ethic, maybe its 9?)
that way of thinking will get you to the right place. the potential tells you how many effective minutes required to get the next point of growth, while the practice plan, minutes played, and work ethic give you the effective minutes. once you rack up enough effective minutes, you get the next point (its really all decimals, so you get the fractional portion after each practice). the diminishing returns relating to 20 vs 30 minutes in a category, that doesn't relate directly to the potential of the category. overall, you get perhaps 75% of the value going from 20 to 30 minutes as you do from 10 to 20. not super confident in that number, but you still get pretty good return on those minutes.
side note, there is no seperate logic for rate of decrease. it runs off the same curve, its just that your effective minutes might be negative if you aren't practicing, and therefore, you'll be slowly dropping. if you need +400 effective minutes to go from 3 points remaining to 2, you'd need -400 effective minutes to drop from 2 remaining to 3.
8/18/2022 9:39 AM (edited)