Hi Jed, IMHO, If you are looking at Shinto condition is very important! remember that if you are putting big $ up you want that exceptional blade, as you want to look at resale at some point take the yasutsugu for instance, it’s a fine work but at this price you are paying Jūyō prices it has TH papers and as Robert posted maybe not a top level polish and the last few shinsa that people are saying were very hard 10% pass if I remember so not much chance of passing higher papers unless you are very lucky as there are 28 Jūyō to compete against so no upgrade on the horizon at the moment people say buy the sword not the paper but in this market, you need the best papers you can get! you will find a lot out there and it’s easy to over pay. Yasutsugu was good at in producing copies of famous blades maybe search some of them out if it has to be a Yasutsugu. As for go not all go’s are equal it’s interesting to look Aoi art's Den Go at TH. then look at Andrew Ickeringill’s site he polished 2 go’s they are Jūyō and he brought out the true splendour of his work. Andrew is one of the master polishers outside of Japan It takes time to find the right blade, and a lot of them are not on the dealer’s sites and at that level I would seek out someone like Andrew for his thoughts let us know what you decide PM if you don’t want to post it