Tren is suppose to be pretty much the best AAS you can get, with multiple purposes and also adding to growth via IGF. But to my understanding it is a very difficult steroid to use if you are inexperienced. It increases prolactin and has a host of other issues whilst also potentially risking the threshold of side effects in general much much lower. I don’t know much about it and it seems like you are cruising on 250mg of test and want to blast at 750mg? What’s your experience with cycling such far and have you tried others like Bolderone and NPP? Both of those are apparently good at bulking however NPP is known to shutdown your HPTA harshly and might have the same issues with prolactin