I entered my first cycle already a little on the chunky side (mostly around the belly), took the adage "calories are king" a little to literally and by mid-cycle was pushing 24%BF (having entered at 21%) I cut the DBol at week 6 - which helped no doubt - but tried some clen near the end to get back to around the 20% mark.
I don't like the "feel" of Clen, even a little too much gives me a feeling of nausea, and listlessness. Only once got the dreaded shakes - awful so I cut back - try to keep just under the level where the sides outweigh the benefits. Everyone is different - I'm doing AAS to feel better - not like shit!
Second time around my diet is much better so hoping not to need the clen, but I would if needed.
A note on the 10% my understanding is it raises your metabolic rate by 10%, but this can have a dramatic effect. For example:
Lets say your daily requirement is 4,000Kcal and (your cutting so) you are eating 3,500Kcal/day = deficit of 500 x 7 = 3,500pw = 1lb fat.
If the Clen adds 10% your requirement goes to 4,400Kcal, eat the same 3,500 = deficit of 900/day, 6,300pw = 1.8lb fat - almost twice as much. For me that yucky feeling also suppressed appetite, so a double bonus - less in and more out!
As I said at the start though I don't like and will try to not use this time - eat as clean as possible (we all know the basics, cut out the simple carbs, reduce the red meat and dairy - plenty oily fish, fruit, veg, nuts (easy though - high in fat) and don't forget the cardio at the gym. Prevention is always better than cure!
Good luck my friend - let us know how it goes for you.
Best - T40