I think it is possible if you have good genetics (EG are an easy gainer) for example look at Westsidetoni My gains (start 1-1-2007) He went for 16cm BPEL to 20cm BPEL in 4months, I realise that’s not actually 2 inches but it’s not far off, He continued gaining after that as well. He was very lucky though
If that’s true it’s amazing. I haven’t been consistent with exercises for a long time and have managed to maintain my gains, but since I joined years ago I have gained maybe 3/4 to 1 inch length which all came in the first year.
By the way, where did you get that avatar; she’s smokin’.