Now holding bitcoin is good, but having ethereum is also good going forward. I think maybe you can buy ethereum in half and leave the other half for bitcoin.
I think it's better if he must wait for the signal that will appear in the market before try to convert back his bitcoin into the ethereum. there are so many big news that can be used to bet on ethereum but the problem is he must not take the wrong position to be able get the profit from the bullish trend.
The drawback of this method is, when the signal appears, the ethereum price may pump and be late to buyback. maybe he can buyback, but the amount will not be more than 32 ethereum. Think about it now, however, the current situation is still difficult to predict.
Its ok if he know to play the game since he earn back again by trading it again to earn on next action but if he settled for that well maybe its best rather than losing again if he doesn't know on how to trade it carefully.
Situation is really hard to predict but if you know how to read the charts you will get a hint on when to do the actions.