Thanks for all the input <img src="/forums/images/graemlins/kewl.gif" alt="" /> I ordered a set of 912's and went with the N-15 (firm) OME Nitrochargers. Thought that might be a good combination to firm up the912's without going as firm as 919's ??? One thing I know for sure from reading here, they will be a massive improvement over 10 year old coils and Gabriels