FSP Rest Periods

I recently switched from a FSP SSC to following the GB WOD. The only FSP SSC exercise I have carried over is the Fx L-Sit that I work 2-3 times a week at 4x15s interval.

Since I am not rotating through 4-5 FSP each round I find that I need 1:30-2m of rest between each work interval. Is this too much? Should I scale down to 5x12 and keep the rest to 1m or less?

I currently work through L-sit, FL and BL statics on all my workout days. I rest 30 seconds in betweeen holds and in between the different exercises. So I have a 30s break between L-sit and FL. I took that from the WODS.