its very annoying it has to be said, i thought i had red sort but its proving very hard.
tried aixiz glass lens and they are crap and give distorted beams.
so next option is tec'ing. get the reds at a stable temp then adjust the 7020h lens. hopefully this will solve the problem. the block the diodes are in only just gets warm when touching by hand, its not like it gets mega hot or anything.
tec'ing is probably the lact option before throwing it in the bin and giving up