I changed my mind about not firing with the saggar this time. Mainly because I had a eureka moment and figured I could coat the bottom of the saggar with sodium silicate, which might keep the oxygen out. I gave the ceramic fibre a couple of coatings and effectively glued the base of the saggar down with it. Then I put an inch layer of sand on top of the fibre. Actually, it's proved to be alot more trouble than making a container with a clay bottom, but maybe it won't crack as quickly, we'll see..
The good news is that I achieved enough reduction and the pots in there came out pretty well, imho.
Only taken a couple of pics so far but here is one of the shino sake cups and one with ash glaze:
I also have a nice lidded box but I've yet to be able to get the lid off. Experience has taught me to be patient when it comes to removing stuck lids..too much forcing and chips start to fly off..
The oxidation part of the firing was okay too, although my test pieces were a bit disappointing. I'll say a bit more about that later.