Still an issue with HD-1 kick

Ok, my MD is working perfectly, except, It doesn't recognize my roland HD1 kick pedals signal (both for HH and kick drum). It looks like the HD1 is using a kind of propriatary signal on the kicks, that the module probably knows how to handle but not the MD (here is the most advanced post I found on the web after hours of research
)
So I plan to add some sensor to the 2 HD1 pedals and add a jack to be able to plug to the MD. In that way, I will have the choice using the orignal output jack with the the HD1 module or the new jack output with the MD.
So here is the question :
1) What would be the best way to do that ? I was thinking about optical controller (as discussed here)
2) Will it work for HH and kick drum or should I use different system ?
Xmattz
PS : I know I could plug the midi out of the HD1 module to midi in of MD and this would solve all issues, but well, I would like to have a solution where I get rid of the crappy module...

So I plan to add some sensor to the 2 HD1 pedals and add a jack to be able to plug to the MD. In that way, I will have the choice using the orignal output jack with the the HD1 module or the new jack output with the MD.
So here is the question :
1) What would be the best way to do that ? I was thinking about optical controller (as discussed here)
2) Will it work for HH and kick drum or should I use different system ?
Xmattz
PS : I know I could plug the midi out of the HD1 module to midi in of MD and this would solve all issues, but well, I would like to have a solution where I get rid of the crappy module...