electronics advice needed - TRIACs (gasp!)

Hello Everybody,
I've been tinkering with the idea of using some TRIACs I have to switch some DC motors. I kmow, I know, why are you taking TRIACs, they're for
AC, yes I know but it read on... Only experienced electro-dudes (or dudettes) may want to answer. I want to use a TRIAC to switch a motor (Gate would receive a traditional pulse signal to activate the conduction) except here's the twist : I want the motor on the LOW-SIDE. In a traditional bipolar transistor switching scheme, this is highly unstable as the load will influence highly on the biasing and triggering of the base voltage. But in a TRIAC circuit, the triggering only depends on the voltage between any MT and the gate, so I don't see there being an issue, but I'm not an Electronics God.

What are your opinions? Has this been done? Can we cross the proverbial TRIAC streams?

Thank you all for your input (and triggering lol)
 
1964 G-E Transistor Manual:

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