Ok. So I am new to hammock camping. I will be doing the majority of my camping in 3+ seasons in the Rockies (backpacking and car camping). Just picked up the Warbonnet Blackbird double 1.1. I also purchased a thermarest pro lite plus (R) about a month before I decided to get a hammock. I have a synthetic bag I have used since my boy scout days. If I end up getting an underquilt, I won't be able to get at the same time as my top quilt due to cost. I do intend to still tent camp occasionally.

So I am trying to decide on a few things:
1) How does a sleeping pad work pinched between the hammock layers?
2) Do I return my thermarest pad to save for an underquilt and if so, what do I do when tent camping? Or should I stick with the the pad for now since I bought the dual layer hammock?
3) Could I buy a top quilt and adjust my old sythetic bag to work as an under-quilt?

Thanks for the insight everyone!