150 ETH is much more risky, but you will have a bigger profit.
I think I will play safe so 9.5BTC and then trade to go to 10 and after HOLD
I also think that investing only in ETH is very risky. Now the price is low, but it is better to invest in both coins.
Right, putting money in one place is risky, it is safer to divide money in many places so that when there is a problem with one type of investment we can still hope to get profit in another place.