Ah ha !
thanks sarosh, that solves it

I was going to attach all four anchor points to the glande. But having them go down to a single cord and anchor point instead, makes a lot more sense.
'Timed' deployment of the parachute should not be a problem.
'Should' being the operative word
The whole flower/flaps opening out would probably be too fiddly.
Bear in mind that this is going to be slung at hard targets.
ie: the parachute should only deplot if you miss the target.
So the fewer the parts the better, and each part needs to be incredibly robust.
I'm basically sticking to a super tough rubber material for all parts.
It's as near indestructible as you can get, but will also let you print pretty fine detail and it's reasonably priced lol
At the moment, I'm down to 4 total components (the glande shell is 2) and one moving part, plus the parachute.
It all looks good - in theory lol
But as the saying goes:
No battle plan survives contact with the enemy !