Very reliable. They've been around since 2012! I've been using them on and off for years whenever I need a push in rankings. They've always delivered exactly what was promised.

Spring clamps can slip on small parts during glue-up (seen it myself).

Ever actually tried it? Hands on tells you way more than staring at a screen. You'd feel that roughness right away.

Ever tried filtering the tap water first, @calebw50?