So it seems one trade equals 33.33% of your balance.
You also stated a trade went 200 points offside before coming back a winner of 50 points. How did that work if a trade is 33.33% of equity employed please, did it exhaust the other 66.66% whilst waiting?
I trade with low leverage, the maximum being 50:1 but usually around 35:1 average. I also keep my account balance adjusted so that, as you say, the average position uses 30%. I keep the rest of the trading capital in a separate account in which I can move amounts back and forth with ease. But the bulk is protected. You could call this a stop of sorts. When I played blackjack professionally many years ago, I kept only a certain amount of chips on the table and the rest in my pocket. This was an easy form of money management. But I digress. At the time of the 200 pip reversal, the account balance and the trade size were such that the 200 pips brought the trade to 45% of the balance. I would have manually closed the trade at 70%. My analysis has proven to me that a movement of that depth is the start of a long term trend (in months). For example: The recent EURUSD spike to 1.17 would have been close to that. I was not in that trade but it was no surprise to me that it reversed. I took advantage of the down side. What a ride!
As a bit of a maths fan myself, on the basis of the above mentioned trade your 10% per week seems exceptionally low.
10% per week compounds to roughly 46% per month. You can do the math on the annual. As my account compounds, so does my trade size with it, so it has become very, shall I say...interesting, over the last several months. I consider my trading to be very conservative. My daily goal is 2% growth but I have been 2.5% on average and have had some 5% days. My weekly calculation includes a 0% day because I don't trade on Fridays and it also includes all the days I have not traded, taking a week or two off here and there. What good is the money if you can't go play with it?
I see you average 75% per month. That's very impressive. I can't say I would want to either do that much trading (scalping?) or hold trades for that long (if you position over long periods). But I would be very interested to hear about your method. It's always interesting to see how others have developed a systematic approach.
I am surprised you have not got more stick here yet.
It raised some controversy early on but as with most repeated topics, it probably became boring. I don't post much either. I'm busy working on trading than arguing about it. But if I'm waiting for my conditions to form or watching a trade mature, the forum can be a diversion. I think the forum is a way to not feel alone for most of us. Besides, I pick up interesting tidbits here and there. I'm surprised at how secretive traders are. Do we really think that any number of retail traders in a forum could move the market? Ha! I always thought, how cool would it be if enough retail traders pooled their strategy that they could actually move the market - an us against them scenario. Not going to happen; greed and pride is the killer.
There is a guy on another forum that has created some crazy MT4 indicators that he literally named "Holy Grail". It appears he is making serious money with them. I followed the posts for awhile in which he spelled out the system, gave all the files, and continues to attempt to educate his followers. Still, maybe 10% of them are having any luck using it. Like TRO: he provides all kinds of information and yet, is anyone getting rich from any of his systems? Is he? Personally, I think my system is kind of dumb. I've gone from incredibly complicated to ridiculously simple and finally settled on moderately dumb. But it works for me. That's all I care about.
Anyway, I'm rambling...