Jedi Archive

I've found somebody who will sell me some old premiums he had in storage for awhile, but they are pricey, and i can only afford 2-3 of them. I've never owned a premium crystal, so i have no idea what the likelyhood of a good tune is on them. This is a question for all you older jedi who have tuned a bunch of these, compared to "good" crystals, what are my chances of getting a good tune off one of these? How many premiums did you have to tune before you got your HQ crystals/pearls? Any feedback here will be most appreciated.

Thanks

urakMDkankrriDDteDDMDuiraxeaDaaaMrnekauciMktcakakk [Mugatu - Elder Jedi - Radiant - Dark]
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ikuaekkMrntkaxkxcxDuxiinkiaxiuakaiecnuutMektektDae [Replochre - Officer - Radiant - Dark]
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DDauiaaixaMaiiMkDicekxkkaaiDurDiteDraratakDictkcua <Dark's Token Mexican>
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krkrkceccDkeciextnaekkiMcixDuirktxkikekkaxrixikMkr ~Ryuzo's Mexican Diktakur~
naxecaxMkukiikencrittrukeMtitDnMkcrrMxDeDcciaknrar
tDtxaiunMaeuiauirxiutikiiDDaxauDckikDnctkekrkuacek
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kckkruaaDekktuDkDiiMniacrcarMiecxianixxeMaitkriiik

I just tuned 2 premium pearls the other day and was as happy as I could be about results. 105/105 -.25 -8FC. The other premium tuned to 86/86 -.20 -6FC. You do get a better chance at a tune. They are pricey but what else do we have to spend our money on?