Yamaha DTXpress/DTXplorer/DTXtreme

Hi everyone, I bought a DTXPRESS 3 a couple of weeks ago after a 
drumming break that lasted over 15 years,  by the way I'am 49 but still 
alive and kicking. I am very pleased with the kit, never thought an 
electronic set could produce such amazing sounds and give me so much 
fun. There's only one problem, I can't get choke sounds from the pcy65s 
cymbal. Any suggestions ?

Marco