Setting your mains to small seems to be quite common, more so if you're only using an AVR to power everything. When I run Audyssey, it sets my fronts to large, which I tend to agree with since I'm running separates for all channels (300wpc). The AVR only has to worry about processing. IMO, the benefit of running your fronts large are evening out the bass...also seems pointless to buy large towers and big centers that are capable of (near) full range, only to neuter their bass. I do agree however, that if you're only powering with your AVR, it's probably better to let the sub (amp) do the heavy lifting on the bass.

As a side note, I believe Ian's preference is to run "large" on the fronts.

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