I have a pair of Tricker's Burfords in the pebble grain from STP. For reasons unclear to me they fit tighter than other boots I have in the 4497 with some pressure on the pinkie toes.
They also seem to not be breaking in like other leathers. They're not Red Wing GT make your feet bleed bad, but they're noticeable stiffer than most. Sort of like when you first put on a brand new pair of shoes even though they've been worn several times.
Are they definitely built on the 4497s last? I've sold my pair, but remember thinking at the time that they were more pointed than my Stows. I noticed since then that STP have also been advising that their Tricker's fit a little small (at least for one lot of Burfords) and it made me wonder if they'd actually been marked with US sizes but were then being sold as UK sizes. Would explain why the boots might feel a little tight as buyers would've been sizing down too much.
If anyone can be arsed, a glance under the heel cushion should be enough to get the last and also the proper UK size of a particular boot.
I wasn't too impressed with the quality of leather on the STP Burfords, too - it felt a little like thin cardboard on the boot sides, although that may well have changed with a bit of wear.