You say, we are behind 70% of the time, but you still want to bet. That simply makes no sense, unless you want to turn your hand into a bluff. Which in my opinion would be really bad, because most people just dont fold trips. Period.
Also I am not saying, that I want to call an overbet jam on the river. I am just saying, that if you believe, that checking will induce a competent Villain to overbet "because we can not call", then you have found a spot, where calling is extremely profitable.
This is just common sense, because if he is betting for value, why on earth would he choose a size, he think, we "can not call?" So when you expect this reaction, you must be expecting him to bluff, and then it makes no sense to try to avoid that.
The way, we win in poker, is to find spots, where our opponents make mistakes. Or if you will are unbalanced. And it does not matter, if those spots are high variance or uncomfortable. We should still take them. And actually it is quite a great feeling to let someone bluff off their stack and send them out of a tournament. If you have never tried that, I can highly recommend it