[Solved] Low- vs high-quality breadboards?

i have around 300 solderless-breadboard connections in project. still, i'm surprised how difficult keep connections conducting @ low impedance ( 0 ohms).  for example, when still hear music though volume control (5k pot) turned way down, it's ground connection on pot breadboard needs jiggled little.

so i'm wondering:  are breadboards better others?  might have bought cheap breadboard, more expensive 1 have avoided these headaches?

videos i've watched such solderless breadboards: how & common problems don't mention board-quality concern, guys know. if quality significant factor, replacement breadboards should purchase?

breadboards not designed prototyping - contact springs dirty
or corroded , connections can become unreliable.   reliable spring connections gold-plated, i've
never heard of gold-plating in breadboard though.

there better , worse breadboards, though wouldn't know how distinguish
between them other avoid buying on ebay.

Arduino Forum > Using Arduino > General Electronics > [Solved] Low- vs high-quality breadboards?

arduino