On the amp forum I started a thread about my HRD at times being a bit too shrill for me. I love the overall tone, but like I said, maybe a little to shrill or harsh when trying to mic it. I've tried on and off axis. I usually settle for off axis and back about 6 inches. This has worked well, but I've been recommended to change tubes and speaker. The speaker recommendation was an Eminance Swamp Thang. What are your opinions. I play at a church. We play a variety of music, but it is modern/contemporary worship (hillsong, united, desparation, etc). My tone is what I consider to be inspired by the brown sound and joe perry (however it is a humble attempt). The pedals I use are in my sig...the OCD being the primary OD. I rarely use the OD on the amp. I haven't hear much talk about power amp tubes. But I was recommended to change the v1 preamp tube to a 5751. From reading about that it sounds more like that would effect getting more drive at lower volumes, this is not necessarily my goal. What are your opinions? Also, my tubes aren't glowing as much as I would expect, or as I've seen on other HRD's. Does this mean they are going bad? Also, if you recommend tubes, please let me know your favorite brands. Where are you guys finding the best tube and speaker deals?