I wouldn't boost in 16x, the competition is much higher and your chases with a single boost to do anything is slim. I'd focus on 1/2x rounds with small TH and try to win one of them. Unless you can really commit to boosting.

Right now, I am sticking with clan, I will probably give it a week and see how it goes. I got two blocks, but the clan has only got 5 which is not a good sign but anything can happen on any day.