Ah, Excellent! Thanks for getting back to me. Maybe if you can just add a reasonable bid-ask loss, we'll be set then.
What that means to me (correct me if I'm wrong) is that if instead of 2,437% you "only" earned 1800% you would've been looking at:
Again: thinking out loud, please correct me

Thanks for the question,
Your math is a bit off. You've done some studying on the typical bid-ask spread, so let's use your figure of .28%. In essence, this is an added commission in that you will experience an added loss of .28% on each side of the transaction. Here is the updated chart showing a .60% commission and .28% bid-ask spread:

It certainly does hamper performance, however hourly traders are still up 210% year-to-date after factoring in your slippage figure. This really isn't the point of the thread though.
I highly encourage you to read over this thread. The point of this thread isn't the 10/21 hourly crossover. In fact, I demonstrated a few months ago that there are better combinations than the 10/21. For example, if you had traded a 20/50 crossover (arbitrary choice) with this same commission and .28% slippage, you would have earned an 815% return over the same time period. The point of this thread isn't a specific combination and timeframe -
the point is to learn the tools and techniques to be self-sufficient.
This said, I feel that you are intensely focused on the "10/21 hourly crossover". I laud your desire to learn and successfully trade but I believe that you are better served by stepping back and trying to understand the concepts conveyed in this thread. For example, I believe that you are better off knowing how to backtest your own ideas across any timeframe rather than knowing that at one time the 10/21 crossover was profitable in the BTC market.
Also, you note that the 10/21 may not be profitable in the future. Again, I have reiterated this several times and pointed out that the 10/21
hourly crossover is not profitable in major instruments like the EUR/USD. The reason that the
daily crossover has continued to generate profits for decades on end in the majority of markets gives me confidence to continue trading it in BTC.
Also, I notice that your account seems to have been made exclusively to talk to me:
Hi guys, I'll be honest - I'm looking to get approved so I can make a posting on Goomboo's 44 page thread on his trading system. I believe I have some very important questions that needs to be answered and am absolutely DYING to get it posted so I can find out the answers. I have the comments all ready to go but just need to be green lighted.
If anyone else finds themselves in a similar situation, I encourage you to PM me directly or send me an email. I'm not so important that the typical new member request process should be circumvented.