First off...I love nitrous and think it's a great idea!
Personally, I'd skip Maximizer. I think it's great for more basic applications, but with our very sophisticated ECU attempting to do the same thing at the same time, I see the two just fighting each other.
Think of this...ECU wants richer so it gives more fuel, maximizer wants leaner so it takes away fuel via the soleniod. Or vice versa. Either way it leads to a car fighting itself.
I'd just hit it with the 35 wet and datalog it closely. If all looks good, up it to the 50 shot.