If the BL is 1.25", then closer to 2.5-3" of spring is preferable. The issue is the bump stop requirements for 33s. You need about 1.5" of extension to keep the front tires out of the sheet metal at full flex and at least 1" to protect the rear shocks from over compressing.
Finding quality 2.5 inch lift springs seems to be a problem. I have read several articles on this forum on the 2” ome hd being 2.5 especially with the spacers. My rubicon has a hardtop, a winch and a barricade rear bumper with swing out spare. I worry I might not get 2.5 inches. Teraflex also just has 2 and 3 inch lift springs. Any other thoughts on quality 2’.5 springs. I do like the idea of reducing my 4 inch RC suspension lift and improving steering and driveline angles.