[Suicide Junkie]

What if you had to use your opener multiple times, in order to widen/stabilize the warppoint?

IE each time you use the opener from one point to another, the warppoint goes from temporary/small to medium to stable/large.

Where the size relates to the maximum size in kt of a ship that can safely navigate the WP.

Or maybe automate it, so when a opener is stopped over a warppoint, it will widen or stabilize it at the end of each turn.
Similarily with a closer. Each turn, the WP would shrink and destabilize a little bit.

Higher tech openers would stabilize faster in addition to having longer ranges.