Here's a list of four 'dogs', with various reasons why they might be the worst springers of their time.
1. Webley Hawk Mk 3 - spring retaining pin hole wears, sears allow accidental discharge, brittle plastic sights, crap trigger, ugly slabby stock - the Webley name raises expectations and then the Mk 3 dashes them.
2. Relum Tornado - insane double spring system for maximum boing, counterintuitive downward swinging loading tap, long, ugly, snakey barrel, gritty, stiff trigger, railway-sleeper stock - massive size gives impression of tremendous power which is not delivered.
3. Chinese B2 (the Arrow etc) - horrible break-barrel with no quality control in any area, deisels massively without being more powerful than a Webley Tempest, oversimple trigger rules out accuracy, cheap like supermarket super-strength lager and appealing to the same demographic.
4. The Brema 35 - no one will know this one, but it is a cheap crude copy of the finely engineered Original 35 with a horrible trigger. Looks like something it isn't like a fake Rolex. Very disappointing to those hopefuls that bought it.