My suggestion would be to allow an in game item to be bought (for CE) that is similar in function to the Heat amplifier currently being sold. This new amplifier would increase the chance of a UV to occur.
While generally speaking a UV has about a 10% chance to occur (or so people seem to quote) having the amplifier maybe increase that % to about 30-40% would be good.
~OR~
Have the amplifier set the minimum UV you can create in that time frame to Medium.
For something like this it may be a bit more prudent to have a time limit of 1-2hours or 10-20 crafts.
This may also have an effect on the market to help stablize the CE fluctuations, with more supply, demand for items will fall as will the associated prices. =D
this would cause equipment with UVs to become trivial