Really? 10mg * 82 = 820mg... *5 = 4.1g/day assuming 10mg/kg dose rate, 5 times a day...?
The research for beta alanine works on athletes in that range, and works out at around 1g per dose (5/6 a day). Increasing beyond this ramps up the chances of parasthesia as well as the percentage that disappears straight through your kidneys: at 10mg/kg, this averages out at 1%, with 20mg/kg going up to 6%, etc.
As long as you keep your dose as close to 1g a serving, and spread them across your day, you'll et te most efficient buildup of carnosine.
Creatine is different (obviously). The instructions you outlined are the 'load-maintenance' phases which are known to work. The reason rest is prescribed is ecause of the requirements for water, etc. and needing to give the body a break. Practically, I go for a 5/7g a day dose rate forever, and skip the rest phase entirely. But I don't suffer from the side effects occasionally associated with creatine consumption, so am lucky.
As it helps muscle storage of carbohydrate (glycogen), it will also increase water retention, with muscles also looking bigger = awesome, with the added bonus of helping squeeze out those extra reps during training.