i have zeros and love them. after having all of the adjustability there, i don't know why i would want less. a bit of a break-in period but once they are broken in they're great!
stainless steel zeros can be ordered with custom spindle lengths. you could get the 'standard' pair in 53 and a custom one in 56 to even out. no more mismatching cleats or anything.
from the
speedplay page
SPEEDPLAY ZERO STOCK SPINDLE LENGTHS
- Chrome-Moly - 53mm
- Stainless - 53mm
- Titanium - 50mm
Need Custom Length Spindles?
Zero Stainless pedals are available by special order from Speedplay dealers in the following spindle lengths:
50mm
56mm
59mm
65mm
edit: same custom length spindles can also be ordered for the stainless light action. so you can go either both zero, or both LA, but get the spindle lengths you need for each bike.