I have been using a Ampeg SVT 3 Pro along with a Pro410 HLF cab that I really like the sound of. Recently I have had some back problems that aren't going away quickly. I 'm looking for a 410 that is lighter that will still give me a good low end thump with the classic SVT growl. The Pro cab is 128 lbs. I know the 410 classic is 91 lbs. and would save some weight. Are there any 410 cabs using the new lightweight speakers that would be worth looking at? I know Ampeg is using the lightweight speakers for their portabass(?) series, but I have yet to see a 410 using them. Any suggestions??????