Going to 3/4-7/8 will results in a 36% increase in pressure, 5/8-3/4 in 100% for a given pedal presure. Same increase in travel and reduction of pedal effort. Those pads are the 'Q' compound. Understand that they don't work as well until they get some heat in them. Their CF rises 20% from cold to 'hot' which on this pad is a narrow range at about 500 degrees. At the risk of sounding like a broken record, have you bed your pads?