Messing around on the internet I came across 2 interesting products by a company called Lubro-Teknik. One is a pellet lube LT1, perhaps someone has tried it out on the forum - comments? I see that Theoben recommend it for their rifles (but they don't say whether it is for pcp's or springer's). Some reviews I have read reckon it is pretty good.
The second product is a LT11 Friction Eliminator which apparently fills & smooths microscopic pores in your barrel. What do you think? Will this be good or bad? Don't we want some friction in our barrels so that the skirt of the pellet is blown against the barrels sides? What if the pellet is a tight fit already? Will the pellet exit the barrel before the air pressure has reached it optimum? Any ideas?
Check out : http://www.lubroteknik.com/gun_oils_lubricants/lt11.asp