Not a factory rig
Jacques, Although an easy to adjust backstay is great, it is not a factory set-up and was added somewhere along the way. The factory set-up uses the stainless tangs with the holes that you lever to tighten and then pin. The same as the side stays. Make sure to inspect all of your stays sor wear/damage. My starboard upper stay had six broken strands at the lower thimble. I'm replacing the upper and lowers on both sides for $174. The fore and back stays look fine but will be replaced soon as well. You will find any number of rigging modifications that can be done on the 25. Mainly, it is a matter of personal preference and cost that dictates what is done. I sail mine with the factory rig. It's not as efficient as it could be but I sail for fun and never really have any place that I need to be by a certain time. If I did I would have boat a, gag, power boat. I am thinking of running lines to the cockpit to make it easier to single-hand and I did just install sail slugs so who knows how long I'll stay with the original rigging. -John