Triggera D11 11" Splash Cymbal Pad

Bought 2 + the China with my Alesis DM10 MKII and all of them won’t pick up all the hits correctly, no matter how slow you play, I’m a beginner so I’m NOT a fast drummer and I got super frustrated nonetheless. Even tweaking in any possible way the trigger sensitivity/min velocity or curve on the module won’t fix this, spent literally 4 days (including changing cables, just in case) testing everything but it’s impossible getting them working properly… the China seems JUST A LITTLE better responding, but still crappy. Moreover on all 3 seems like the “hitting area” is very small.
I’d return them but they just came in plastic bags, no carboard boxes whatsoever, I don’t even know if it’s a DOA, the bags were full of dirt and dust…