Trent, the heater is set to kick up the temperature to 74F in the day (around 23C?) and can get even warmer than that if the sun is out, which of course you know. SO I'd say on an average at LEAST 76F daytime. Growth rate is noticable. The highland form is slower than the lowland form. The highland form seems to pitcher quicker once a leaf unfurls, but the lowland form grows faster and pitchers slower. Very odd between the two. And yes the lowland form grows much faster in the summer months, it should be picking up speed shortly in the next few weeks as the days get longer. The pitchers really should be huge this year. Last year the biggest topped around 18 inches high, I'm really hoping for one over 2 foot!
Anything else I need to clarify or check for you?