These results are very interesting, but I'm too chicken to try. I don't get to brew as often as I would like, so I fear that I'll have a bad batch and not be able to brew for another month.
If you could save more than 60-90 minutes on every brew day from now until kingdom come, would you be able to brew more often and thus increase your overall happiness level? Here's how:
1) Cut your batch size in half. This reduces time to get to boil by perhaps 10-15 minutes, and perhaps sparge time by a similar amount.
2) Only mash 40 minutes. Try it! Turns out fine, I promise, I've been doing it for years. This reduces mash time by at least 20 minutes.
3) Only boil 45 minutes. Save at least 15 minutes.
4) Love to sparge? Say goodbye to the sparge. Brew In A Bag (BIAB). Saves at least 15 minutes, and much more time if you're currently a fly sparger, maybe a whole hour?! Plus it's really the best way to mash if you're doing small batches anyway per recommendation #1.
And then on bottling day, it will only take half the time to bottle. Or get smaller kegs -- yes, they exist.
Any one or all of the above variables can be tweaked to allow you to experiment more, brew more often, and increase your total happiness level. IF you're anything like me. Many people are. Many are not. Suit yourself.