Some more SMASH results for the archives. My overall goal was to see which of Breiss' base malts might come closest to Crisp's Maris Otter, and also to try Simpson's Golden Promise.
I used Simcoe as an early bittering addition only (19 IBUs) and US-05 fermented at 62F for 1 week, then 68F for another week, to let the malt shine through as clean as possible. Each of the malts below was its own separate SMASH. The OG's are listed below too, all run on same equipment, processed as close to the same as I could, all brewed within 3 days of each other to minimize differences due to aging, then bottle conditioned for 2 weeks:
1. Breiss' Brewers Malt (BM), OG = 1.054
2. Simpson's Golden Promise (GP), OG = 1.055
3. Breiss' Goldpils Vienna (GV), OG = 1.050
4. Breiss' Pale Ale (PA), OG = 1.052
5. Crisp's Maris Otter (MO), OG = 1.055
6. Breiss' Ashburne Mild (AM), OG = 1.054
FG's all were around 1.010.
My TL;DR rankings are: MO/GV/AM > PA/GP > BM.
Beer color, lightest to darkest was as follows: BM, GP, GV = PA, MO = AM. No surprises there. GP is a tad lighter than GV and PA, which look the same to me. AM might be slightly darker than MO, though I doubt I could really tell them apart.
Flavor: MO is probably best in show. Pronounced malty finish, subtle but complex flavor all on its own (bread/biscuit, and slight nut qualities). GV has a nice malty finish too, with a bread/biscuit complexity that is close to MO. AM has more bread/biscuit/nutty flavor, perhaps even more than MO on those notes, but not matching MO's malty finish. PA and GP are slightly malty with overall clean finishes. BM was plainest of the group.
Mouthfeel: AM had the most body, followed by MO, then GV/PA/GP, with BM last again.
As for the goal, MO earns its praise. GV seems to be my close 2nd, though I like AM for different reasons as well. GP was clearly better than BM, but so were GV and PA, so that may depend on what you're looking for. I'll need to do more tasting comparisons to tease apart more differences for GV/PA/GP. I didn't include a true pils in the series, so that would be a good dimension to explore.
YMMV. Cheers!