I've read here where a couple of people have mounted the Cateye Astrale8 for the stoker. Mine just came in and I'm wondering if I should have ordered the extra long cabling? I saw where one person ran the wiring to the front wheel, does this require the extra long cabling? Also what is the 'spider'? I read where the cadence was obtained by mounting to the captains cranks on the 'spider'. And one last question...I am having the LBS install a flight deck for the captain position. If I have the flight deck running off the front wheel can I also run the Cateye off the front wheel as well or is it better to run off the back?