It could hinder your gain in some way yes. It will not allow you to "bloat up" as much as you would had you not used a Ai from the start.
Sooo, a reduction in bloat (an estro side effect) is also a reduction in 'net' cycle gains?
Also keep in mind that your Ai of choice ( arimadex) lowers IGF by as much as 18% and higher from what many different studies have shown.
An acceptable loss by any standard, 'IF' an AI is 'REQUIRED' for some reason.
These are all things you want to take into consideration when thinking about weather or not you want to run a ai throughout your entire cycle or not. Also what Ai to go with if you do make the choice to run one during the whole cycle.
Personally I would not run one at all. Have a good strong Ai like Letro/femra on hand to kill estrogen quick if the problem comes up.
So you'd recommend a strong AI (which would necessarily evoke a stronger estro and requisite IGF reductive result) over a weaker one? I thought your point above was that an AI could hinder gains. Now I'm lost.
Then have a suicide aromatase inhibitor to follow up with after the letro.
If you are going to run a AI throughout the entire cycle then your best bet IMO is a "steroidal aromatase inhibitor" otherwise known as your suicide aromatase inhibitors like Aromasin-Exemestane as these Ai's rob you of a lot less gains and in fact
potentially add more gains then they take away if using the right ones.
Plus another strong AI?
Aromasin-Exemestane reduces the bodies estrogen by around 33%
(actually it's far stronger and reduces far more than this)so not so much that it will crush estrogen into nothing. Through studies its been shown to lower shbg which will raise free test thus adding some gains. its also been shown to raise IGF as well. So its the best on cycle Ai other then formastane/letherone tm which does all of that and lowers prolactin as well.