hi crimson, welcome to the forum bud! jus my 2c, your understanding of a bridge is spot on by the way, its the time fro the last pin until the start of pct (this length is dependent on what compounds where used in a cycle etc. as im sure you understand)now regarding the bridge, winny and proviron is always good in this phase as it hardens up gains nicely and is in essence a small cutting cycle, if one could call it that, you could use prop too, but remember it has its own half life, and waiting period before a pct too, being 14 days. so its best to work it out in accordance to your longest acting ester so you can stop the prop at the right time, allowing the long and short ester to end at the same time, thus beginning your pct.. if that makes sense to you. for example, cyp has a waiting period of 36 days, and prop 14.. so you can still use the prop for 22 days after the end of cyp, (1ml -100mg- every other day= 20 days) will be perfect.. that way both esters will clear at the same time.
basically the reason MK suggested you drop your bf, is the gyno sides, when bf is higher, you are at a much greater risk in developing gyno related sides, then that adex will def need to be used, with regards to that, letro has some very nasty sides, and in my opinion is not worth the cheaper route, opt for the adex, at a few extra hundred bucks, the effects are far superior and you can get a good 2-3 cycles out of it..
lastly the shooting blanks part

haha fortunately the cycle you have opted for isnt too harsh on the reproductive system, but what ever shut down HAs occured (which it will to a degree) will be sorted out during the pct, which is one of the main functions to get natural test back to stable and normal levels.. there are pcts designed for guys with problems and low sperm count etc as in DOCtaris pct no. 3 .. but thats run after heavy surpressive cycles.. you can get away with either pct 1 or 2
good luck bud! look forward to seeing your choice and outcome