I didn’t have that option. My PS said that I didn’t have enough abdominal tissue. I disagree! Lol! My first expansion was 100cc each. I had 100c filled during surgery. Total of 200cc so far. My PS is only filling the expanders with air until I’m done expanding at which time they will swap out for saline. The first day after the expansion I actually felt more comfortable because it stopped the expander from rising from my chest wall. The second day I was in quite a lot of pain similar to the first week after surgery. I think it just aggravated some fuzzy nerve endings. My skin does not feel tight like I thought it would. Although the expanders are wide and flat I feel a little better about my shape. I go back in two weeks for another fill. It’s been 25 days since surgery!