Wait a minute. Are your stats listed right? 6'0" and 360 freaking lbs? If you are six foot tall and three hundred and sixty pounds you are no where near 20% body fat. That would mean you are 288lbs of lean mass. Based on your cycle history (and limited knowledge, no offense intended) there is absolutely no chance these stats are correct. Most people drastically under estimate their body fat percentages. Either that is the case here or those stats are a typo.... Maybe you meant to say 6'0" and 260lbs? Or maybe 6'0" and 360lbs @ 40-50% body fat? Something here doesn't add up!!!
Anyway, regarding your question, typically I'd say there are absolutely no negatives to increasing your dosage to 750mgs/week. I'd say that is true for 95% of users that are under 15% body fat. The more body fat you carry the better your chances of experiencing estrogenic side effects with elevated doses. This is my opinion and personal experience. Also a bulk cycle is always better started with lower body fat levels. If your bulk diet is on point, you will gain additional fat while on cycle.