I've used metal washers to tighter the loose space ... then I bought Ultimate Support Boom arms - BEST in the biz.
https://www.sweetwater.com/store/detail/UltiBoomProTB?product_id=UltiBoomProTB&campaigntype=shopping&campaign=aaShopping%2520-%2520Not%2520In%2520Stock&adgroup=Studio%2520%26%2520Recording&keyword=&placement=google&adpos=1o1&creative=105593158321&device=c&matchtype=&network=g&gclid=CjwKCAjwu7LOBRBZEiwAQtfbGE9SY9ednHb78qzerNx9DxUquR972dxilUDk_5SEiTrjnYLNPU_opBoCzJMQAvD_BwE
One knob adjustment of all angles. LOVE it!
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