I'm in the same boat...doc had me on 300T and exemestane (agree it's the best as it's steroidal and doesn't harm HDL levels the way arim does). He doesn't like test over 200mg/wk and no anti-estro at all.
Problem is...exem only came in TINY 25mg tabs way too small to cut. Doc suggested 1 a day!! Too much of course so I just did 25 mg e3d. Libido fell off the map...blood tests showed my estro level at 6! So added hcg in to get natty test up a bit and E2...brought T shots down to 100mg twice a week then down again to 50mg EOD...hcg at 300 EOD...and also had to switch to arim due to cost on exem being $360/30 of the 25s and arim being 30 of the 1mg for $19. SO currently taking 1mg arim every 5th day. Seem to be feeling better but would like to pull blood again and see. Been here before and just shot right past proper E2 and ended up around 80. hence the lowering of the test dose for a couple months while on hcg.
Thinking to go BACK to the doc and check things out...back the hcg to 250 twice a week till out...test back to 200mg...then 300 once off hcg... and then maybe swap to exem and have a compound pharm make me 5mg caps/tabs and take that EOD. Half life is short BUT since it's not bad about rebound I'd think that would be ok. I don't need much...and if I wasn't on hcg then I'd likely do no anti-Estro. Normally that puts me around 35 E2. 300 test and no anti E as long as it's 100mg 3x a week, maybe 150 twice.
Really hoping to find that sweet spot again soon and then leave it alone...not sure why I listened to the docs advice knowing how my body reacts and what I need but he mentioned it changes as we age...thanks doc. Rather not stay on hcg long term but he strongly suggested that also. Shouldn't need to but the libido loss made me panic and wanted it fixed quickly.