Help with calorie calc?

Hi all,
I'm 120 days in today to my journey and down about 30lbs during that time. I haven't been perfect but this is also not a diet for me, but a lifestyle change, so this isn't a race. I'm a female, 36, 5'5", CW 211, SW 241.

Here's my question:
In January I started with -2lbs a week setting in MFP and am currently tracking around 1.8lbs with my less than perfect tracking (~4.5 weeks of vacation, international work travel and just non-compliance where I know I was over my weekly calorie allotment by some amount).

So, the problem with the -2 setting is that it gives me only 1200kcal a day and then I earn about 500-600 exercise calories back each day for which I eat about 75% on average (based on real tracking).

Does it matter if I bump my setting up to lightly or moderately active to "get more calories" and see less "earned" calories from my Fitbit synch? Or should I just leave well enough alone until I have some more reliable data?

Sorry - first goal weight is 180 - another 35lbs. From there, more but it's a process.

Thoughts? Or it really doesn't matter and it's all preference? It just kind of seems that I'm moving more and a little more hungry but don't have a whole lot of calories to play with at 1200-1400kcal ... I'm afraid that I'm going to start feeling deprived and that could lead to bad choices.

You guys make this all possible! Seriously, MFP is the best. Thing. Ever.