Base on my experience about losing streak in 50% chance i had 30+ red streak, in 77% chance i had 8 red streak and in 90% chance i had 5 red streak. I know what you are thinking why you are asking this question, you will bet 1 satoshi until you get that streak then you'll bet high amount. Just a tip for you if you ever going to do that it might work but there is still a chance that you'll lose the next bet.
"30+ is very wide concept" its 31/32 or 35/36+?
i allready know numbers, i simple asking what people in real betting are getting, to reduce some one bet(in real life its little bit smaller)
not need to wait max possible streak to start bet, otherwise then "betting on work base percentage" will be very rare, it good to go over 25% of all possible streak, and then with 1000000 BRM you will not be bad(with right increase)