SO pretty much your running Epi, Furuza-A, and 11OXO, not a bad cutting stack at all.
Looks like 250g carbs a day, approx 250 Protein, and around 30-40g fat- total cals 2350 roughly.
Being 15 weeks out when do you plan to run you PH's 8 weeks out till comp, 6 weeks?
Right now diet is not bad, I would probably be slightly more carbs a few days a week. up till 10 weeks out then drop my couple higher days to lower days (under the 250 mark) and watch to see my weight loss. If Iam losing 1.5-2lbs a week at 10 weeks out I feel good. You are 10-12% so roughly every 2lbs is a percent. Id taper carbs every 2 weeks and up the cardio with that two. as wek know the last 1% to 1.5% is always the hardest.
To be honest, I dont like the stationairy bike at all for cardio, just because it usually does not burn as much fat as quick as some others. I like Uphill walking keeping the HR around 130. I like the eliptical and starirtepper also. But use Stair stepper maybe once a week because over use can hurt leg size. But using once per week would be adaquate. Up hill walking sustains great leg size and burns tons of calories.
This is just my preferences, there are many different ways and thoughts. This is what works for me.