now Bitcoin price has increased 17.5% in the last 7 days and now the price is $27,750.69, then BTC Domination is 70.9% with Market Cap amount $727,677,130,354, but Ethereum price is currently $644.61 and is down 1.44% from the last 7 days, so I bought Ethereum with all my money (money that I use specifically for investment), because I believe Ethereum price will soon increase very high (bull run) following Bitcoin price movement and of course I will get a very big profit from investing in Ethereum (my target for Ethereum price is $1100-$1400), because I believe if Bitcoin dominance decreases, then it will make the price of altcoin increases (including the price of Ethereum).
For me your strategy mate is good but you are putting too much risk for that percentage dip of Ethereum. As we all know Altcoins are known to be dependent on Bitcoin's price. When Bitcoin reach the correction, that 1.5% will be gone and this is a matter of luck for your investments if the price will continue to rise for a couple of weeks or months since in every bullrun we will expect of course the bearish days where almost all Alts will bleed to death.