i guess rome wasnt built in a day. and that is the thing from a micro investment would be pretty sweet at the end of the day. thought someone would have a better plan, someone who has done it with some expectations. just playing your br as a guide and see how you do seems very broad i suppose
Well when i did it (from $15 the first time, then from $50 the second time), i just played micro sngs until i had $400-$500 then learnt cash from 25nl. I had a very bad habit where i would withdraw way too much when i would hit a really rough patch, so i would grow my roll then withdraw it back down, etc. So stayed at 25nl for a little while, then decided to move up to 50nl and ran good at was able to move to nl100 in one month, although it probably took me another month to fully "move up", since i ran pretty bad everytime i tried. Prob took me about 4 full months (of fairly low volume playing) to move up to nl100 from micro sngs, and i moved up the levels very slowly (intentionally) and withdrew way too much so my roll grew far slower than it would have otherwise.
Once you have some experience with playing the levels tho it doesn't necessarily take long to move up from a small deposit, IF you know you can crush the levels pretty bad and IF going broke isn't the end of the world. I deposited $500 like 3 weeks ago after taking a month break and am now relatively comfortably rolled for nl200 (tho i got close to going "busto" - don't play nl100 w/ $700
). But i don't advise this - i did it because i have done the "build the roll from basically scratch" before and know i can beat the low levels very easily, and i didn't really care if i lost $500. But mainly coz i wasn't willing to play nl25 or even much nl50 again.
So if you haven't played much then just use the time building your roll to improve as a player. I spend alot of time playing nl25 and would have done everything exactly the same again, even tho you can't really make much money at nl25. I know a guy who has terrible bankroll management, even tho in terms of knowledge and actual playing he should be a winner, and he goes broke again and again trying to rise too fast. But had he grinded appropriate levels he would have been miles ahead of where he is now if he had moved slowly but surely.