Well, I finally purchased a new bass rig. I have been using a Hartke 3500 and 4.5XL cab for about 10 years now and have been very satisfied with the sound. The weight of the rig (and GAS) has encouraged me to modernize. I have purchased a Markbass F1 head and an Epifani UL310 cab as a replacement. I cannot wait for my new gear to arrive and will probably lose sleep due to anticipation. Does anyone have this particular rig? I also purchased it without being able to hear the rig. I put in tons of research on this site before making my purchase. Another problem that I have run into is I have a gig this Friday in OKC and don't have a guarantee that my gear will arrive by then. I'll be praying extra to get it here in time.