Hi new here so if this has been asked before, my apologies. I am new to building basses and have bought a cheap Hipshot style 4 string bass bridge on Ebay. It strings through rear and is not a string thru body type. You know the type, with the channels. I'm just wondering how you move the saddles backwards and forwards to adjust intonation while the strings are tensioned across the saddles. Do you just slacken off the strings, move the saddle, retune, then check intonation again and so on? Is there an easy way to move the saddles? Sorry new to all this. Ebay seller knows nothing about this.