I'm a little partial to Barber pedals as many know around here. They're so transparent and great for pushing an amp over. They stack well together also. To me, those qualities are required to push ch 2 on the LSC. Other pedals I've had (non Barber) just muddy up the mix. Buffered pedals seem to do the mud also. I highly recommend any Barber. They cover anything from clean boost to amp like gain (low,mid,& some high gain too) really well, all models with the exception of the Dirty bomb not really doing clean boost, mainly a high gainer. I have the LTD,DD,SF,TP,Tpump, with mods also. The Barber line is the best bang for your buck boutique pedals out there.
As for the BB, I've read(never tried one) that stacking in it's own line up (AC/RC/BB)(or with others) results in it getting a little muddy in the bottom end. Hmmm. Somebody is going to slap me for saying that. :shock:
One more thing, the SF is a tad bit thinner than the LTD/DD. The latter are very warm sounding. But, the SM has some internal trims to help warm it up alot. IMO,(no humble here) the SF sounds really, really, good with an ext. cab added to the pig. This is not true of the LTD or DD, since they are very warm already and just get even fatter with the ext cab. I also would recomend the Barbers with internal trims. DDSS, SF, CC(LTD SR with SF controls). This allows for tweaking to match guitar/amp very nicely by adding more tricks to the pony.