Op seems like traditional stock investor that is why he/she go for low percentage of profits in crypto currency as well but something looks like guaranteed.
But if you ask me I wouldn't do this for only 17% of return per annum since we can make that profits if we do the trading with volatile coins in couple of days but risky though.
Yeah right, the OP strategy that was shared was good and safe enough, but only a few returns were obtained, such a strategy is only for people who have more than $10,000 capital to get a high profit from the 17% return.
I also agree with you, if we do not have such a large capital, it is better to trade with what is capable in high or medium volatile markets. Of course it must be with careful analysis.