Challenge donkey-memorising shove/fold charts

WRT to shove fold charts I have been using some downloadable resources from prokerstrategy.com and for the most part these are a nice level of security when you have -13bb and want to ship it with decent equity, even when you are called. You still need to look for opportunities where you have more than the usual amount of fold equity when the spread of stack sizes may cause extra tightening up.  The charts also do not take into account your 'M zone' or relationship to the pot size including antes in MTTs, but for sit and gos they are the business. I have almost completely memorised the 'open shove' and 'rebound from the button' charts, I just wrote them out with only a few minor errors which I need to correct. In fairness I had started to memorise these charts before this weekend so this was more like revision, but in keeping with the steeper learning curve I set myself this weekend I wanted to revisit the material and learn it properly. I was inspired to learn some shove/fold charts when I watched a Poker After Dark episode where James Akenhead is put all in by David Williams and you can see the cogs turning as after a few seconds James announces matter of factly 'That is a call.' Contrast this on the recent NBC heads up championship where Dennis Phillips makes an emotional, almost agonised call vs Eric Lingren, with the chip lead and a decent equity hand vs Eric's likely shove range. I would rather have the numbers at my disposal to make emotionally detached informed +EV all-in decisions than be a 'feel' player who is subject to silly tanking moments or donkey calls. Heads up all in decisions are obviously more simple that full ring considerations so the pokerstrategy.com charts cover different eventualitites of position and number of big blinds and there are 4 charts in total.