Despite being a 90* system, I'd recommend disassembling your barrel and cylinder before removing the trigger. This saved on un-needed wear and tear on the stopper and related parts.
EDIT:
Had I realized that this was such an old post, I would have withheld this comment. It showed up as new on my end.
EDIT:
Had I realized that this was such an old post, I would have withheld this comment. It showed up as new on my end.