I've been a GHS Boomer user for a long time. On my 7 string, I put their 10-46-60 strings. I like their sound and how they feel. What I don't like, is that I feel they don't stay bright very long. They are relatively unexpensive, so in a sense, changing them often is not economically speaking, a "burden". But changing strings is not my favorite hobby and therefore, I'm slowly wondering if I should try something new. If I could find something that has a similar feel, and a similar tone, but last longer, that'd be great. I play in standard B tuning on my 7 string, and I feel the 60 size 7th string is boderline big enough. I wouldn't mind increasing to 62s or something in that range. I'd try D'Addario, but I really don't get why they provide only packs with 59s. I don't know anyone who plays with 59s in B tuning. Finally, I should say that I'm not into building custom packs of strings, or something.... I very much prefer just buying a pack of 7 strings that fit all my needs.