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?
I have tried to used bitcoin to buy altcoins at each other advantage but it has not worked perfectly for me as it seen no much opportunities to do that. Bitcoin will ever be dragging other coins along so I think buying and holding should be the best options. If you know how to margin trade, I think it is another option for you too.