Jumped head first into it several years back, best thing we even did. Started off really simple as described in the book, opened the various accounts and set up profit at 2% and Tax at 2% and have adjusted as we went - have been very conservative with bumping the percentages up as we have went along. Has been an amazing tool for us. His other books have also offered very good business tips that we have used as well. Our accounts look like this
Income - all checks/payment go in to this account
Profit - Savings account only
Tax - Savings account only
Merchandise - we specify and sell merchandise, when we get an order the money goes into income, percent into profit, percent into tax, balance into Merch account. We reconcile this account quarterly and any extra money goes directly into the profit account
Operating - Checking account. Pretty well dialed in at this point to cover all operating expenses.
Start of every quarter we take half the profit out of this bank and share as profit distribution, remaining half stays and continues to grow
Tax payments go out - if any excess half goes into profit into the secondary bank
Sounds complicated - even typing it out seems complicated, but once in the groove it is a great tool. Helps immensely that we have a great bookkeeper of course that bought into the idea