starting back with 175mg weekly will (more than likely) put a huge strain on your system, cause problems with aromatase, high estradiol, possible cortisol problems as your system burns through cortisol trying to keep up with the extra T, possible thyroid problems if you don't have enough cortisol left for your normal thyroid function, potential issues with DHT, potential issues with DHEA, etc. etc. etc.
I strongly recommend starting off slower at a more reasonable dosage (100mg weekly with shots of 50mg E3D). You can always increase later if needed, but why jump in at what most consider a very large initial dosage?
I went off on this long rant about seeing you setting yourself up for failure before I read the second part of your post.