Do not make modifications to your detector not unless you do not care about losing it!.Like me i thought i would be smart and cover speaker hole with tape to keep dirt out until a very smart treasure hunter Sapper said don't do it,it can damage your speaker over time,and i thought about it and why.Well if you have tape over the speaker hole and the sound waves can not escape what will happen,bounce back and crack speaker,and if you ever want to trade or sell detector you now have to deal with sticky substance around speaker hole,don't do it,it isn't worth it, just protect your detector the best you can, get a rain cover if it will help but these are even annoying because it is harder to adjust the detector controls while hunting.The only thing i have done to the Vaquero now is put a small piece of tape around were the first pole goes into detector section to make it fit tighter so while hunting the rod does not have play and squeak while sweeping coil, has anyone else had this problem with the top first pole not having a tight fit on Tesoro detectors? the slight movement of rod assembly is kind of annoying right? well the little piece (very little) of duct or electrical tape fixed that problem great, but that is as far as i am taking my modifications right now.You really have to respect Tesoros life time warranty and don't goof with your detector! Charles.