I will try to post a table with my rates and some of my knowledge about crafting probabilities. Valdoroth I think you first die is good for lvl6 100%- lvl7 100%-n, when 1=<n=<100. I have done 50+ crafts in difference crafting lvls and so far the rate for any craft at lvl7 less than 100% is the one you have given. At 100% lvl7 craft [maxed craft Lv.] your success increases around 2%[tested with osmium mainly]. From osmium[take is as an origin] you have a 7.7% success chance of getting a PC, 1 each 13 tries. Each lvl up or down of craft, you subtract or add .5%. So a PC at forcium lvl7 100% is around 6.6%. You can test it if you like...you will get close numbers. I got alot to study so im not getting in more details...but one day after I seen most cool crafted stuff from me...I will post my table of facts .