1997 Mercury 115hp 2+2 how smooth should transition be?

[Hambone83]

I know these engines are supposed to transition from 2 to 4 cylinders at around 1800-2000 rpms. My question is should the engine act like its stuttering/missing for a few seconds during this transition?

I bought a boat with this engine about a year ago and it was poorly adjusted so I did a full link&sync on it according to the manual but I'm having trouble figuring out if the idle jets on the carbs are adjusted right. I took it to the lake and fiddled with the carbs all day today but I couldn't get rid of the stuttering during the transition from 2 to 4 cylinders at around 2000 rpms. I had it running smooth at idle and full throttle but it always wants to stumble for a couple seconds during the transition if I apply the throttle slowly. If I keep it around 2000 rpms it shakes and acts like its missing until I give it more or let off.

This is my first boat and 2 stroke outboard so I don't really have anything to compare it to.

Be glad mine won't open the bottom 2 carbs at WOT