The Lalkilla Karahi was a lot hotter than expected (despite having asked for it to be extra hot)... Hotter than their Phall. I can remember having a jalfrezi a few times in other BIRs which were as hot as last night's Lalkilla Karahi though. Have had Lalkilla jalfrezi before and it wasn't hot (only a couple of finger chilli slices in that one).
I personally prefer a smooth sauce for hot curries, so Jerry, your idea of blending the fresh chilli into a paste appeals to me. Have yet to use a vindaloo (or madras) recipe that includes fresh chilli paste, but must give it a go as an addition. Out of interest, what kitchen implement do you use for blending such a small amount. I have stick blender, pestle and mortar, food processor, and juice blender... can't see any of those being ideal, except for the pestle and mortar with extra effort going in to make the paste smooth.