I think technically, the 1.14 caliber stability was from @Zeta's modeling with some amount of nose weight so it's hard to say. @Spacey you may want to either model it yourself, or weigh your rocket and find the Cg and ask Zeta to override the weight and Cg in the model, or ask Zeta to send you the current model so u can override those values.If your margin of stability is 1.14, then you don't need nose weight. But I would suggest a lower thrust motor. 36G might tear up a cardboard rocket. How about the H128W? Little longer burn, lower thrust, less G's pulled.
Also, @Zeta, not that it will change much but @Spacey's fins are balsa papered with cardstock vs plywood. However, modeling that might not be too simple in Open Rocket? I have never modeled papered fins, even tho I have papered some of my own fins