I own Wesco engineer's and the Morrison. I'd only wear them for walking all day if i didn't have my SD or Alden's in rotation tho the Morrison's are better than the engineer's for some reason.
No experience with other brands.
I look forward to seeing your 300's and your sizing impressions andy b.. I'm going to throw down on a pair of sprung toe in Black Water Buffalo too once it get's closer to my visit back to the States in May.