Has any one else heard of the possibility of shortages this year, it is said that due to a shortage of R125 (which is in all the blends) coupled with a severe shortage of trichloroethylene which is the feedstock of R134A (R134A is also used in most of the blends also) means that the price of refrigerants will steeply rise this year, that is said to be the best case senario, worse case there may not be any available this summer.