I've been setting ropes up for rebolting work for years now and this is usually a solo effort when there is nobody around with awkward access around the top.
As mentioned above I used to just stick clip with a loop a gri gri and a Jumar but I have abandoned that approach years ago because after all I am rebolting a route with questionable bolts.
My method now is to tie a fig 8 and a quickdraw into each end of the rope and leap frog between the bolts. There is no rope tied into my harness. Just use a combination of gri gris and a shunt or device of your choice plus a jumar. This way you are always attached to a couple of bolts. It is also much easier to stick clip long distances with an end of rope not a loop.
To drag this back on topic, I am not sure I completely understand this method, but I like the idea of stick clipping a single rope, not doubled back, to the next bolt (if I understood correctly).
I think I will do this next time: lead solo as usual with a grigri and backup knots and the whole shebang on a regular lead rope while doing the aiding by stick clipping a short bit of rope with jumars attached to it. That way, even if the bolt high above me that I commit to blows I just take a normal (self-belayed) lead fall. This should be as quick as the normal method and substantially safer!
The only drawback I see is that I would have to bring 7-8 m of tat, and possibly a second jumar if the route is very steep and I want to ascend the rope using the grigri+jumar method.