Enormously disappointed in the new Sierra version of TechTool Pro app when it comes to creating a TechTool Protogo (Pro-to-go) startup & diagnostic tool on a USB stick.
Previously I had a version of the Protogo drive made with Yosemite. This was reasonably effective, started quickly & ran quickly enough except it wasn't for use with Macs with Sierra installed as the version of TTP on the Protogo drive wasn't Sierra-compatible.

The new Protogo drive made with Sierra & using the new Sierra-compliant version of TTP is slow to the point of uselessness. I installed it on the same 16 GB USB 2.0 drive as the previous version.
The Protogo drive incorporates Safari, System Preferences, Preview, TextEdit, Disk Utility, TechTool Pro, Console, Activity Monitor & Terminal apps with a basic startup version of whichever Mac OS version you happen to be booted into when creating the Protogo drive in the first place.
I found that apps were impossibly slow to open and for some ungodly reason the 16 GB drive included a 4.29 GB sleepimage. This is odd because the correspond ing sleepimage on the Mac that created the Protogo drive is only 1.07 GB.
Tomorrow I'll reboot from the Yosemite external SSD & run TechTool Pro from the Mac's internal drive. Then I'll recreate the Protogo drive using the Sierra-compliant TTP app but with a Yosemite OS.

It's approaching 9:30 pm on an uncomfortably hot night and I just can't be bothered trying to fix the fucker today.

I can't use my left index finger for Touch ID on my iPhone because the skin surface keeps changing due to dermatitis.

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At yesterday's Mac User group meeting a person approached me about MacBook Pro purchasing advice. I'd had a similar conversation with her several months ago but life has been chucking lemons at her lately and she just plain didn't have the time. My advice was to go for a refurbished 2015 13" with 256 GB SSD, 8 GB of RAM & a 2.7 GHz Core i5 processor. She'd been considering an entry-level 2016 non-touchbar 13" MBP but she said she preferred to have a the old-style ports, esp Magsafe. She sent me an email a few hours later saying she'd taken my advice & would pick it up a her local Apple Store next week.

MacBook Pro GPU Issues Reported to Be Caused by 3rd-Party Software - WCCFtech http://wccftech.com/macbook-pro-gpu-issue-software-problem/

Amazon: driving your data. Amazon’s Snowmobile Is Actually a Truck Hauling A Huge Hard Drive - WIRED https://www.wired.com/2016/12/amazons-snowmobile-actually-truck-hauling-huge-hard-drive/

The 13" one is a bit unusual: it shipped with a 160 GB HD which I thought a bit odd because the while MacBook available at the same time had 250 GB. And a higher-spec processor, too. That 13" used to be mine: I upgraded it to 4 GB of RAM and a 320 GB 7200 rpm HDD. That made its performance quite snappy in its day. Now it's used to keep track of a bunch of library books.

Belongs to a graphics designer/stage actor. I onece bought a 300 MHz G3 PowerMac from him: it had a 450 MHz G4 grafted onto it, 2 GB of RAM and an absolute brute of a graphics card that's better that the one in my 2005 G5 PowerMac

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Had I looked a bit closer, there was an 11" MBA on the other end of the table which would have made the shot even better.

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Nope. The last of the 17" ones came out in late 2011 & had either a 2.4 or 2.5 GHz Quad-core i7 Sandy Bridge on board.

13", 15" & 17" MacBook Pros.

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