Hmm, I like that combination, markerlight, target lock and VT for a skyfire markerlight.
I am really looking for new ways to play my tau, I've had great success with old Tau lists, using 2 (or 3) skyrays and the firebase cadre as a basis, minimum of 2 riptides and usually a markerlight drone + commander or markerdrones + crisis in a unit that the commander joined. Turns out that type of list gets old, so options to replace skyrays are welcome, just as I am now trying riptides and a surge to see if they provide the Dakka now that I removed the broadsides.
However, after last years ETC I found that the current meta kills to much out of my army, forcing me to go with defensive options, reducing manoeuvrability and firepower.
I found that a bunker and a tank commander do fine in protecting the broadsides, but in essence I was playing the same damage dealers, less mobile units, less ability to spread firepower and the list was not hugely mobile either. Gladius in particular really whoops my behind now.
So now the new list above where I'm pretty much all mobile, and a really tough set of players to try out if they can pull their weight*.
I have seen the light regarding FnP, I took 2 missile drones for calli, I should have found the extra 20 pts for FnP on 2 riptides instead, that maths out better overall then the drones that just protect vs grav.
* I know, one should playtest before a tournament, but I just bought a house.... and it's a fixer, so I expect just 1 test game before cali. I'll just run on natural genius and abundant talent**.
** You can all stop laughing, I can hear you from this side of the pond..
Good luck skyfall, hope you get a lenient ruling since you caught it yourself.