I have built many musky glide baits with grea success, musky guys they are looking for a foot/second sink rate. I have been using Vodkaman sytem for couple of years and it works great very accurate (Thank You Dave) I have purchased a beaker that is graduated in MM and is 3 inches By 20.5 inches toll, I use this beaker to find how much ballast I need. I also molded a all bunch of weights from .5 grams 20 grams with wire hook on them, I will hook this weights from the belie of the bait until I get the sink rate I am looking for, I have also done suspending baits using this system. You can also make a balancing a scale to balance the bait or find the attitude of the bait, like perfectly level or nose down etc. etc. When you this with a balancing scale you must find the center of balance or gravity of the blank before you add any hardware. I made a wish bone wire hangar that I hang the bait from the back at the center of balance than when I had the hardware and ballast everything is balanced from the marked center of gravity that was established earlier.
Some day when I have more time with the help of a friend I will do a tutorial, I have learned so much from this site that I would love to give back and make some new builders their bait building more fun. On one note by figuring things on your own will teach so much more, but I always looking for some good tips, and definitely you will find them here
Gino