I have to respectfully disagree with Corwin, 2 fives compliment one another very well, and are much more affordable than 1 clean 10ssi. this is my reasoning.
Personally, id rather pay 125 or 150mil for 2 clean 5s, than shell out upwards of 300mil for a clean 10.
For PVP you can run 60 ssi with only 150 stam to achieve 1.5 swing speed with a comp bow (more like 180 so you can take a few hits and still be at speed) ill never run a character that relies on 180 stam again. its just so much stats that could go into mana, and ssi is much easier to get.
Only bumb i would make from a 60 ssi 150 stam suit is a 55ssi 211 stam suit. but you lose so much survivability in those 211 stam suits (especially for garg) that they are very tedious to keep up with. Potion wise, a suit with 60ssi, 160s base stam (before pots) is very easy to make and if you run out of pots you arent at a huge disadvantage.
I also try to have at least 25 ep on my pvm throwers and archers. 50 would be great, but its just to hard to fit in the stats. For pvm i prefer 10ssi jewels, or 1 five, a ten, and the town bonus so i can have overcap mana leech on weapons.