Just saw Malcolm's video on this, good to see someone try it! I'm ordering his rub from Amazon this Friday!!
Good move. His rubs are great. A little pricey but good.
I had trouble on my first batch drying out. I was cooking much higher temperature and did them in half the time so that may have contributed to the drying out.
I gotta say, I'm not that big of fan of pork or chicken kabobs. They take a decent amount of prep for little reward versus just cooking a pork chop or chicken breast whole IMO. And on top of that, small chunks of lean meat leave very little margin for error.