noobie-do
It is often said that 90-95% of players that learn counting will eventually fail/go broke. So be take a hard look statistically at where you might end up!
Couple of questions:
How much money are you willing to risk at BJ (ie quit forever when you lose this amount)? If it is less than a couple thousand bucks, you might as well just stop now and try something else. The fluctuations WILL wipe out most underfunderfunded players (who are playing perfectly, you won't be!). Take a look at the "The Mayors BJ journal" link on the side and imagine starting playing where his stats nosedive. He is a solid player with a difficult count system, but like all us he faces inevitable negative fluctuations.
How often will you play, is there a good game near you? There is no sense in learning to count for one trip a year to Vegas. The learning/practice time required for counting will make your hourly expectation to be in the sub 10 cent range if you are a nickel player. Having a good game near you helps get thru the startup period, hopefully a shoe game with late surrender, decent penetration and the possiblity of avoiding negative counts.
KO is a great starting count, but if you think you will be playing a lot, I would recommend HiLo.
Ask a lot of questions, especially about bet size and risk. Every now and then a recognized poster disappears from cyberspace. Some suspect aliens being involved, I think they are part of the 90% of lost souls!
motheye