Hi I recently bought Vandy Vape Pyro V3 RDTA, came with 2 x Fused Clapton Coil 0.33ohm. It tasted great the first few weeks i'd say, but now the taste is very muted even when im switching flavours, putting new cotton in and dry burning the old crap off the coils. Do I have to buy new coils its the only thing i can think of, if so why, It still produced vapor etc? As i say n0ob question thanks.