If you suddenly grab a handfull of brakes and squeeze as hard as possible, yeah, hydraulic disks will throw you a** over teakettle. But it's the same thing as any other brakes - good brakes need to be used correctly. I don't know that you need to do the rear first - I don't - but if it works for you, go ahead.
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"Don't take life so serious-it ain't nohow permanent."
"Everybody's gotta be somewhere." - Eccles