Alright, so...my Current Rig, is SWR workinman's 4x10 with a Son of Bertha 1x15 underneath, and a Hartke Model 5000(20 watt) heasd on top....I've noticed that my 10's dont seem to be doing to much and mostly just my 15 doind all the work. Im thinkng about Going with another 1x15 cab and ditching the 10's all together....Is this a real bad idea?? Im thinking about getting a Hartke XL 115(the metal coned one) keeping my Son of Bertha and getting a HA 5500 head(pretty much the same as mine just double the power)....So the cabs will be rated at 550watts and the head at 500...that should be fine right? Sound like a decent pairing up of cabs?? Any better ideas?? oh....and i play in C-G-C-F tuning using mostly just the C and G strings...just so ya know. Im thinking this should pump out the lows in a real nice way, but the still be bright enough to get the small amount of higher notes i do use?