I hear you and am weighing up the same. But this time is very different, with the board approving the brookfield bid, and with a recent review which decreases the chance of any skeletons in the closet, I think the 2.58 is a likely outcome. There is a chance BGH up their bid too as they will be getting desperate to deploy funds with their Navitas bid failing.
As much as I'd like to sell, I think hanging in for 10% gain over 6 month period is probably the logical thing to do. There is every chance the market will be further up or down in April next year.