My flexibility never decreased, so I don´t see the need to stretch in general.
I do however need more flexibility in the hips and shoulders for ultra-wide sumo squatting and Olympic lifting, so I´ll incorporate some mobility work for the hips (which doesn´t stretch the muscles and can be done before training without decreasing your strength for the day) and maybe a stretch or two after shoulder/pec work.
195 kg SQ, 130 kg Bench, 245 kg DL, 200 kg SQ w/ wraps
Long Term Goals:
@ 75 kg: SQ - 252,5 kg, SQ w/ Wraps - 267,5 kg, DL - 307,5 kg, Total (w/ and w/o Wraps) - 710
@ 82,5 kg: SQ - 275 kg, SQ w/ Wraps - 277,5 kg, Total (w/ and w/o Wraps) - 772,5 kg
Team Insanity - The Laws of Physics are Merely a Suggestion