DHV safety Notice - Reserve deployment system failure
In short - you must always check that the reserve you fit to your harness can be correctly deployed. If in doubt get a professional to fit it for you.
If the strap connecting the handle to the inner deployment bag is too long, the DHV suggest that a figure of eight knot can be used to shorten it.
The problem appears to be evident with the harnesses in question only when high packed volume reserves are used but is in truth common to nearly all harnesses and reserves if poorly fitted...