This is what I am thinking. I also think a lot of this bubble is new noobs who will be shaken out once they realize BTG is a scam and many details of the upcoming fork are still up in the air.
It may only lose 15% but with so many strong altcoin projects listing at 3-4 month lows looking at big advancements (the first real decentralized markets and exchanges are right around the corner) I'm taking my BCH, BTC and LTC profits back to alts asap.