OK, I have read all your comments I think that if I am going to pay for a feature, that feature should be an adjustable pole. I have read many differing opinions on length and have decided that I may change my mind about what I want more than once, especially while learning. Since I may not know the proper length right now, perhaps I should go with an adjustable and see which length works best for me. However, it seems that it is only about $30 more to get these with triggers (at least for me, the lekis I have found don't go short enough for my wife). So, I might as well just get those. I know we have spent some time looking for poles a couple of times so the triggers should avoid that problem.
There are still a few questions on this though:
Do the trigger systems eliminate the possibility of breaking your wrist or hurting your hand with a strap?
If so, do they still stay clipped on when you fall regularly and there is not enough force to break your wrist (i.e., do they fall off to easily)?
Do the straps just fit over your existing glove?
If so, do they inhibit the dexterity of the glove (i.e., can I just clip off the pole and use my glove hand as easily as if I did not have the strap on it)?
How easy is it to clip on and off?
I have also noticed that the adjustable poles sometimes are refered to as back country ski poles, will these fit my needs (I assume I cannot use the trekking poles.)?
I have also looked at the K2 lockjaw series, but they are only $20 less than the Lekis