Opinions sought on Wakizashi

[Taygrd]

I recently aquired this sword and had a few questions that I cannot answer after doing some research. This is for my collection and I have no intention of selling, so all information that will be given is for my learning. The sayagaki attributes this sword to Tsuda Enhizen Kami Sukehiro and gives the date of 1675. I take that information with a grain of salt. The blade was signed however all that I can make out now is the first character of the mei and it is similar to Sukehiro's mei. I am aware that Sukehiro did produce swords with sugaha hamon and that the there was very thick nie in these blades. So far all of this fits with this blade. What does not fit is that this blade does not have the hefty Osaka-shinto look to it. I feel that the blade has been altered during polish at some point since the ha machi does not have the depth to it as it should and the shallow hamon. The nakago does not have the same shape as some of the Sukehiro blades I have seen as well. The nagasa is 17.7". I do not claim to be an expert, I merely listed the above information to show I did my due diligenace and reseach prior to comng here hat in hand. Does this blade look as though it matches the saygaki? If someone would be so kind to as to provide a little information, it would be greatly appreciated. I also apologize for the poor pictures. Thank you.