ok ive been given plenty of tips on removal of rails for wcs 94 rails. however installation i have a question, do i need to run the double sided tape the entire length of the rails? i was going too origanlly but new rails turned up with three bits of tape already on them, doesnt go the entire length just sticks a in three spots up the rail, is that enough? i would have thought it would leave gaps up under the rails where there is no tape or is that of no concern?