The one thing I would add, is if you're going agsainst a fleet with a LOT of bombers, DO NOT drop the SSD in. Bombers will shred the shields in milliseconds, far faster than an entire fleet could ever hope to.
Yep, you should always bring in loads of screening corvettes, and drop them right beside the SSD. You will lose some if there are enemy cruisers or frigates nearby, so my advice would be to drop 5 or 6 of them, and replace losses, if necessary. And you'd have to have 20-25 of them in the fleet, or 10-15 at the very least. In extreme cases you can drop every corvette you have. Playing against Maldrood and Pentastar I've noticed that Arquitens are especially keen on killing your corvettes, so you have to keep that in mind, and sometimes drop your corvettes directly in behind of the SSD, so that Arquitenses, Strike Cruisers, Vindicators, Gladiators, Nebulon-Bs, etc. (depending on the faction) will be killed by your SSD by the time they get to your corvettes. Don't forget about your other support ships, ISDs, VSDs, Procursators, etc., which can do the job of protecting your corvettes as well. I know that whoever is reading this probably knows all of this already, all I'm saying is that it's very much possible to keep your SSD relatively protected even against the worst of fighter/bomber swarms. You will lose some corvettes, for sure, but that's about it, if you play it smart.