I find it is almost never worth it to hold through any merger or split, reverse or forward. The pps (relative in case of splits) will take a dive and because of the symbol and cusip change you cant sell until your broker receives the new certs. This usually takes 3-5 days but some brokers are worse than others and you may be stuck for weeks.
The momentum is always before, never after and you do want to sell into strength
and in this case the PR is a not clear if the 6th is the record date or the X-date, but I have a feeling its the record date. The X-date is the only date that counts
"You can't be a real country unless you have a beer and an airline - it helps if you have some kind of a football team, or some nuclear weapons, but at the very least you need a beer". F Zappa