Make sure you aren't letting your product get to dry before trimming, not saying you are, just a thought. I like to do my initial curing in 1 gallon ziplocks about half full for the first few days.
Most of the first 24 hours it is still moist enough that I keep the top open but not widely. After I begin sealing the tops I will open them 5 or 6 times the first day, puffing them with air, and gently shifting the bud about within the bag. Over the next few days I will check them less and less and combine them to a fullness of about 2/3rds.
Somewhere around the third or forth day you should be able to go down to one or two airings a day. What I am smelling for is that green smell that occurs when the product is enclosed and moisture condenses in a manner that reminds one of wet greenery. When I wake up and take that first good whiff in the morning if all I smell is yummy bud goodness, and no greenness I begin storing my zip-locks in vacuum sealed food saver bags. At that point I will check them once the next day then. If still no green smell then I go to a check it every 3 to 5 days routine.