Yamaha DTXpress/DTXplorer/DTXtreme

i came back from reading yesterday and found my Visu Lites 
waiting for me, they are very nice and do play very well (pictures 
in photo's bit) the problem with them is that i now want more, 
however i cannot afford them (i had to pay an additional £40 or 
$60 for import tax ontop of the price)

i am considering purchasing pracitce hi hats and converting 
them as all the visu lites use is a pezio trigger sandwitched 
inbetween the bottom of the cymbal and connection for the plug.

however i am worried about the hi hat controler i have opened 
mind and had a look but it looks like a rater complicated way for 
it to work, does anyone have any ideas how i can get around this 
- i plan to hook a multimeter up to it later on and read what 
signals it gives off when it does certain things.