I have an Ibanez BTB series 4-string with two active Ibanez humbucking pickups. Lately, I have been thinking about getting a new set of pickups because the ones that it came with are not as versatile as I would like. I tried a BTB series 5-string at a local guitar store and was impressed with the tighter and punchier sound. I noticed that it had Bartolini pickups. I have also been considering EMG pickups. Any suggestions?