I work in a troubleshooting environment where everyday I fix things. One thing that I have learned in my short time in my job (10 years). Is to always check basics and human errors.first. For example u go out to your bike and it will not start, you have lights u have a fuel pump priming, but the bike will not start. What do you check first?
I have been on yamaha's since 02, my first street bike was an r6, I went against what everyone said and UT 14k in one summer, before wrecking on my first track day, fz1 09 r1 05 r6 track bike, every forum somebody's always mentions something about false netural or what ever. All of these machines are built for racing, or are race inspired the fz line. They are ment for the most part to be ridden as such. So be sure you are making firm shifts. If you are, then you may have a problem and I would suggest to have your dealer look at it.
Without knowing what experience people have ridding, and this bike being attractive to new riders, which I do not believe this bike is an ideal first bike. Always check for the obvious first.
This is a great platform my biggest complaint is the noise dive setting my corner entrance speed, feels like I'm on my wr.
I too work in a troubleshooting environment....I've been a Journeyman Maint. Electrician since 1980....spending 30 years in a fully integrated Steel Mill and working on lots and lots of complex machinery. We had (6) 400 Ton overhead cranes in the dept. that I worked in. No, that's not a typo......400 TON capacity on the main hoist, which was rather complex.
I'm certainly not saying it's not rider error, but you didn't really need to express it the way you did......"shifting like a Grandma". The longer you are in your profession, whatever that may be, and the more experience that you acquire, you will learn to NEVER ASSUME something about what may be the issue. The one thing that struck me about the original post is that the bike shifts OK when going from 6 to 5, and 5 to 4, but 4 to 3 gives him a shifting issue. To me, logic indicates that he most likely is shifting the same way every time he shifts....but yet, it's hanging up in the 4 down to 3 shift. That is why I suggested that maybe there is actually an issue with the bike. Again, it might be rider error, or there might be an actual problem, so don't ASSUME that he is shifting like a Grandma.
Oh, one other side note....I've been riding since 1971 and the FZ09 is my 26th motorcycle.....so yea, I've got a little bit of experience there too.