Oh great. Just as I start to understand the dynamics of stay or go with that offer, I got a phone call from the other recruiter. Apparently a well-established hedge fund (I've heard of them, you may have too) liked what they saw but have a different position that they thought might work even better for me. It is less stable (starts with a six month appointment, as they're inclined to do). But it is also designed to help me transition from research programmer to quantitative strategy.