@Tom Pintaric
I feel like I may be missing something here. S&S is intended to be a sustainable park bench program. As the book says, if you never have have heavy days, you don't need light days (although the book does have a provision for occasional "lighter" days using overspeed eccentrics with a lighter bell). So feeling like you need to "deload" from S&S seems like a red flag that you're not implementing the program as intended. So let's check in on some of the relevant variables and see if we can identify a problem:
Volume:
100 total reps per day x 5 day/week = 500 reps/week and 2000 reps/month. So after a little initial confusion, it seems like you ARE doing this according to the program.
Set length:
You state that you are doing sets of 10R/10L as one continuous set, correct? That is twice as long as specified in the program. 10 on one arm is a set, and you alternate arms each set. Doing sets of 20 instead of 10 will have a significant effect on the energy systems you are using and your ability to recover from set to set and day to day.
A lot of people here are doing A+A protocols using shorter sets (5 reps or fewer) and more repeats with great success.
Rest between sets:
Rest in daily training should be generous and allow for relatively full recovery between sets. With a challenging bell, I find one set of 10 at the top of each minute to be too rushed. A set of 10 on the 2:00 is not too relaxed, but depending on a lot of variables, you might go a lot faster or even slower.
You don't even have to go by a clock and can just go by feel. With a challenging bell, you are also not going to be able to intentionally compress your rest periods over time in a linear way and still recover properly between sets. Trying to do so will also definitely have a negative impact on your ability to recover day to day.
You may naturally need to rest a little less between sets over time, but compressing the total time is not the goal.
The goal is to just plug away doing your 10 sets of 10 with adequate recovery.
You can test yourself periodically by trying to reach the standard of doing a set of 10 every 30 seconds, and you can periodically do a continuous set test with a bell one size lighter than your working bell (IIRC, the book recommends this once you get to 32kg as your working bell). However, IMO the testing is not even necessary. When you feel like you really own a bell in daily training, and it is more an easy than moderate effort, it's fine (IMO) to start incorporating a heavier bell for some of your sets (there are lots of strategies for doing this, and it may require dropping the reps per set to 5 or fewer with the heavier bell).
You haven't made clear in your posts how you are resting and recovering between sets in your daily training, and this is a HUGE factor in the sustainability of the program.
Overall recovery considerations:
If you have other significant (or lots of less significant) stressors, it will have an effect on your recovery. These might be physical (other training, playing a sport, physically demanding job, lack of sleep, poor nutrition, etc.) and/or mental/emotional. Consider your package of stressors and recovery factors and modulate your training accordingly and/or see if you can improve on those recovery factors.
Recover as hard as you train.
Hope this helps.