Each set of my EA are organised according to their "concept" of trading plan, eg. some EA, such as scalper mode, I use 5 to 15 min time frame's indicator to determine their entry conditions. And there are some I use 30min and higher time frame indicators to as the determine factor for entry. As such these EA are numbered and saved like the way I saved your 7.0 series (I use 7 because I want to differentiate yours from mine for easy identification at a glance, other prefix numbers are taken up for my EA, except for 7, 8 and 9 and usually leave these numbers for other people's EA when I help them fine tune it or when I do some "crazy" experiment such as revere trading some time ago). Eg 60min entry EA, I use the prefix 6 (60.1 H1 entry with Trailing 300, this will be an example of my EA file name so that the moment I export it to MT4, I already have the magic number 601 to use and track it's progress).
Each time I add some opening conditions I may save the file differently to see how the additional condition influence the EA's behaviour or performance. Eg, 7.0 and if I change the BE from 150 to 100, instead of overriding the file, I save it as 7.01 etc so that I can compare which is a better option simultaneously.
Once I have a systematic way of numbering my EA, next to try to have all the same series or similar one in each MT4, eg MT4 terminal 1 will be for scalper EA, T2 will be for 1hr EA (all these are still using 1min time chart but different concept for entry).
Each day, I try to take a screen shot (like the one below) of my EAs open positions to help me keep track of how much floating they made and to later compare whether they closed near to their peak or too slow in responding to market changes. Thereafter, I'm clear which EA need adjustment and which EA's concept is better in opening and closing accuracy. By looking at the screen shot, I can compare all my EA at a glance and see which is best and which has "weaker" entry point.
I'll have a note book to record those good EA, eg, each page is for each MT4 and then I'll have different column for different EA series in the page. Each time I noticed an EA that performed well, I write it down in the column of the series it belong. I'll put a side note to the EA whether it close well or not (EO/EC means excellent opening/closing and SC means self closing and SL means it close due to SL feature, TP1000 mean this EA closed at TP1000, ssm means Super Scalper Mode, LR means this EA is able to capture Long Run/Trend etc, I favoured EA that all these characteristics SSM, LR, SC and EO/EC, in order words, this type of EA is able to function as a scalper and a breakout EA according to market situation and have good closing conditions, hence self close with excellent entry/exit accuracy) in this manner, after a while, at a glance, I can differentiate which EA to pick/shortlisted for further testing or live trading.
Lastly, to track and analyse each EA performance, I either manually glance thru' the trade history to see which EA performs well and if I need further analysis, I go to MyFxBook and use the magic number analysis function to examine further the EA's entry and exit accuracy and other statistical performance.
I hope I have painted to you a clear picture. I won't say that my method is totally systematic, in the past I used excel spread sheet to tabulate their results...too overwhelming to do it for so many EA.
All these EA are based on the same theoretical framework, that's why it's easy for me to reproduce so many of them but with different approach in using various time frame as the entry/exit determining factor. I can't possible have so many different trading theoretical framework. It's the same framework that guide me through all these EA development. That's why this framework is very sound and strong yet robust for me to adapt and try various approach in term of using different time frame determining factor and yet still can produce profitable EA. Now the quest is to find which time frame is more "reactive" and responsive to market changes yet stable to bring in consistent profit. Do spend more of your time to fine tune and search for a trading concept/framework you can be confident and then try to develop EA based on that concept. Using the Generator is one approach to narrow your search. From the way your EA behaviour, I got another idea/approach (using my own indicators) to enhance my scalper mode EA, I was thinking about it last night, and I couldn't sleep, I was so excite to try this new approach but yet feel exhausted already by now from the thousands I've made. I think I badly need a break.