I am practicing for my poly. I bought a blood pressure monitor. My natural blood pressure and pulse is around 120/70 with a pulse of 62. When I do the anal squeeze my blood pressure goes to something like 135/80 with a a pulse of 70-80. IS this enough of a reaction? Is it too Much? what southern california deparments use one of those seat sensors?
I don't know how to quantify what is enough and what may be too much of a reaction, but it is clear that you are successfully producing significant reactions using the anal sphincter contraction. In any event, in the context of a polygraph examination, your reactions while answering the "control" questions will be measured against any reactions while answering the relevant questions.
I have no information regarding which departments in So. Cal. are using sensor pads or strain guages in an attempt to detect/deter countermeasures. You'll find illustrations and discussion of such devices in the message thread, Counter-countermeasure techniques (https://antipolygraph.org/forum/index.php?topic=1352.msg10796#msg10796).
As an alternative, you might wish to test your ability to produce reactions using mental countermeasures.