What is the right sequence or timing to buy and sell BTC?
When BTC drops, then sell all alts to buy BTC, when BTC goes high, then sell BTC for alts?
How many percents do you put aside for long-term HODLING?
To be honest, No one really knows the right time to buy or Sell bitcoin. Or even move funds to altcoins. Its still unsure. What I just do is to follow the market trends and sum up a possible pattern and then I take action regarding it. If I remember correctly, People ask the "when" questions at the time bitvoin was struggling at sub $1K price levels. So the bottom line, just buy when It has dipped and you think It won't dip any further.