I am not sure how to answer your question. NL and FL are completely different games. I have very little experience with the latter. The game I am playing in has had three different iterations. It started out as $5/$10 fixed limit. That weekly game dissolved when I began hosting a competing $1/$1 NLHE/PLO $100 minimum buy-in game at the same venue. I ran that game for nine months before getting fed up with the responsibility. Too many tight players with half of the table begging me to keep the game going into the am. The other rub is the game would slow down around eleven o'clock due to the amount of alcohol consumed by a few of the players. Just not enjoyable.
The group resumed playing $5/$10 FLHE/Omaha-hi after I left. One of the players, Kenny, tried to get me to rejoin the group. I let him know I wasn't interested in those stakes. I shared with him my opinion that the game would play better at $8/$16. He discussed the change with the group and voila! I reluctantly rejoined the game two weeks ago. I am of the opinion that setting the right stakes is very important in FL. You have to keep the game interesting.
At $8/$16 I won $1100 in the first three and half hours of playing my first night. I maintained the last hour of play. (4.5 hours in total) Last week I won $900 over the five and a half hour session. As a NL player, FL loses its zest. Their is no moving all-in to bluff a person off their hand. Conversely, the stress is removed from having to decide whether to call an all-in when another player puts you in a difficult spot. The obvious upside is how profitable FL can be if you play your cards right.