The easiest way to do the Touches tendency is to scale it to each player's Usage Rate. You don't have to put the high scorers in the 90s as long as the rest of the league is scaled accordingly. So based on last year's Usage Rates (I use Hollinger.....as far as I can tell his varies from other sources, but as long as you use the same source for everybody you should be good) Kobe would be a 33, Westbrook a 30, and so on. This also makes it easier to get accurate touches for guys who don't log a ton of minutes but are high volume offensive guys (Jamal Crawford, Nick Young, etc..)