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I own a Induro AT313 with Induro BHS2 for about a year now, and I have to say the stability is EXCELLENT especially for its price point and I love the extension of up to 175cm, which should be enough for anyone. It appears to be quite alot more stable than Manfrotto 055, and Induro's twist-to-unlock leg makes it much easier to use in my experience.
Only thing that bothers me about AT313 is its weight, but as you said you won't travel everywhere with it, shouldn't be a problem for you.
But I do advise against Induro BHS ballheads as it seems to creep a little when you tighten it at first, even with 5D II with Tamron 70-300 VC which isn't exactly that heavy.