I'm a 62 SwS in full Tallum Heavy. I have a Dama w/ Focus but also use a BoP w/ CS (to keep all the mana I can for songs but still do better damage than my sword) for PvP. I have no tats what-so-ever with the exception of the stats on Tallum but I've been dying to get some for ++damage. I've heard many ideas on what tattoos people think a SwS should have, if any. So I'm hoping I could get some opinions from former or current SwS about this. Perhaps you have some tats you find to be working well for ya?
For DD'ing -con +str
If for soem reason you find your self in need of a damage taking set up, +con -dex.
If your using bow for pvp then perhaps -con and +dex aswell to improve crit rate and atk speed.
Also i dont think int is so great for SwS so get -4int +4wit to resist those nasty pvp debuffs.
The only MUST HAVE tatoo that I can think of for SwS is -INT +WIT. Other than that LE fighters have balanced out stats for a reason. Its usually best to keep them as is, if anything get tats to balance out the tallum set if u want. LE don't get the bonus for + stats like some races do with stats like CON and STR so there really is no reason as you don't gain a whole lot. I had -4 STR +4 DEX for a while, it was nice, I took it off just to try something different and I'm still not sure if I'm going to get another tat. It only dropped my patk like 60 (I use Damascas and DC heavy set which also lowers str, lol) and fully buffed it raised atk speed roughly 50-60, crit rate +8, evasion I believe only 1 maybe 2, I forget. Run speed was raised by 5. I know DEX also raises shield block rate but there is no set number and I honestly cannot say I noticed a difference.
If you wanna go PURE PvE DD/buffer role its cool to go -CON but if you plan on PvPing effectively at all DO NOT go -CON. In PvP SwS use bows a lot and some people may actually think you are an archer and make you a priority target. My advice for PvP AND PvE setup, don't get any tats except ones to balance armor bonus/penalty but in all honesty tatoos are not effective on LE fighters except maybe +DEX for more evasion on archer/dagger branch.