One thing I've noticed is that my mast shape seems a bit...odd. When I bought my boat it came rigged with the original mast, but came with one of the 'new' style masts (stiffer, etc), so I immediately rigged up the new mast.

I've tuned the rig according to the Doyle tuning guide from the class for the 'new' style masts: the uppers are around 27, the lowers are around 15, and the mast is straight left-to-right. The oddness (to me) is seen in the image above: the mast seems to curve forward at the top (forestay/furler is on the left, the spinnaker halyard and topping can be seen going straight down and they are not under a lot of tension, while the mast itself has a slightly bowed shape). I should note that I am using a Loos gauge 'Model B', while the Doyle Boston tuning guide only mentions 'Model C' and 'Professional/Model A'.
I will also note that my forestay/furler sags a bit in high wind, for example if I sail on just the jib in ~10kts I usually have to add a bit of backstay to keep the furler track from bowing. I have not actually measured the length of the whole furler unit, which I suppose I should do the next time I drop the mast...but I would think if it was too short (which could cause the odd bowing), that it wouldn't sag without backstay? I do note that the Doyle guide says to keep the backstay on for a while at the dock, which I've never done and guess I will start doing to see if it helps...
Anyway, curious if this is normal for 7.9 masts, or if something has gone sideways with my rigging?