Taking it a step further, I imagined the game engine could do the calculations, and not allow you to select pins that were unsuitable for the conditions you had selected (grey them out, maybe), and would only select from the playable ones when selecting the random pins. This would allow designers to add pins that would still give players on slower settings the challenge they require, but it would avoid the unplayable pin problem on the fast settings too.
That is exactly the problem we come up against at TW's, in order to make a tough pin, playable on the fastest settings, it makes that Tough pin super easy on a slower setting.
In order to make a tough pin playable on a slower settings, it renders the tough pin on a fast setting, unplayable..
I'm with ya now.
p.s. we also have to think about levels of play, so if they use a 3 clik meter, there HAS to be easy levels and harder levels of that meter... Something for all..
I personally have always used TS but that is yet another can of worms I doh't want to go into right now..