Question [Q] Turning S-On Again with Custom Recovery

I own a HTC One M7 UL with KitKat 4.4.2 and HTC Sense 6 installed. I installed TWRP 2.7.1 custom recovery on it and after that I turned S-Off and removed the Tempered flag and then locked the bootloader but let custom recovery stay there. Can I turn S-On back with custom recovery installed without bricking my phone.

HTC One M7 UL
Stock ROM KitKat 4.4.2 with HTC Sense 6
Stock Boot
Stock Hboot v 1.57
Custom Recovery TWRP 2.7.1