I'm now on my third 2.5mg pen and it's working well for me so I think I'll stay on 2.5 for the foreseeable until it doesn't work.
I bought from Zava and bought a 2.5 and a 5 pen for my first order. I'm now not sure if I'll ever want to go to 5 since I'm losing steadily on 2.5. Is there any way I can use my 5 pen to get 2.5? I think it's to do with number of clicks?