The maximum I recall ever seeing is about 45 degrees, and I've never run off the end yet!
- can we also assume that you have not had an engine failure at V1 on which to make this assessment? I too have seen the stick held full over 'by rote' at brake release - why? - there is no benefit! I also have
never had a wing 'lift' on a 737 in a crosswind take-off. I use the minimum aileron necessary to control the aircraft.
ANY spoiler deployment must 'spoil' the aerodynamics of the wing - lift, drag and probably both. You are in uncharted territory at that point.