Finally! With enough down-time to relax, I've trimmed up all 12 of Strelets' English Cavalry of Edward I. As you'd expect from Strelets they are the opposite of attractive and some are truly bad. However, they are one of the few sets that fit the period.
I have brought in a couple of ringers from Itaeleri's Templars - they don't stand out too much next to the Strelets chunkiness.
Heraldry is going to be a challenge, but the result should be colourful.