>Mike: Yes its a picky specie. Hispida need less light and cooler nights.
Sure. But providing cool nights and low light hasn't usually resulted in adult pitchers for me. I grew one juvenile for 4 or 5 years, it still had juvenile pitchers when it died during moving. I got an unrooted division with small adult pitchers, and it reverted to juvenile leaves. This one here is the only juvenile that ever started making adult leaves for me: https://www.flickr.com/photos/51764444@N03/14107295418
So I'm impressed that you were able to get a juvenile hispida to make adult pitchers that quickly, low light and cool temps haven't been sufficient for me usually.