You can easily roll with 4 ST fits (Runs 4 ST or 3 ST + MWD), and mine has lived for like forever now:
Scimitar - Shield Logi (V+4ST).jpg
Can swap ECCM for another Invul or tracking link for MACHACs. Quite cap stable with mindflood, and I usually always have 10 KXA1000 implants in my hangar at any given time. I also use shadow serp tracking link(s) with MACHAC fleets.
If you want to tank it more I think Garmon's fit looks pretty good for a tankier mwd fit scimmie.
EDIT: Also, if you fly a scimmie you should really really REALLY drop the fucking jewgun, as 4 STs rock the boat so much harder. And if you have to do a 3 ST fit to get more tank, then fit at least a small Smartie instead or even a probe launcher (yes, you have the CPU).
Оr you know, bе less useless and fly a basilisk instead‚ ѕincе speed won't be an issue then tbh.