Yes, occasionally - though he publishes more criticism and filk, and I suspect can only manage one or two publications a year. However, Roger generally has books from a couple of other publishers on the Beccon table at cons - again, it's worth asking (and he's certainly not the only publisher running tables in dealers' rooms who is quite willing to sell other books).
And, if you haven't done so, try looking a bit further around the British small press SF publishing scene (and you will very quickly find that, in this market, people are quite willing to pay £10 for a paperback the size of "Three Windows"). There are quite a few out there, some (including, but not restricted to, TTA Press, PS Publishing and Immanion) with substantial and very reputable track records - admittedly, there are others which are simply writers publishing their (often appalling to mediocre) own books.
(And you could try giving yourself some publicity on the BSFA website forums - but do make sure that you post promotional material only in the appropriate areas and also make at least one or two contributions to the general conversation.)
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And, if you haven't done so, try looking a bit further around the British small press SF publishing scene (and you will very quickly find that, in this market, people are quite willing to pay £10 for a paperback the size of "Three Windows"). There are quite a few out there, some (including, but not restricted to, TTA Press, PS Publishing and Immanion) with substantial and very reputable track records - admittedly, there are others which are simply writers publishing their (often appalling to mediocre) own books.
(And you could try giving yourself some publicity on the BSFA website forums - but do make sure that you post promotional material only in the appropriate areas and also make at least one or two contributions to the general conversation.)