In my not so humble opinion... Total time isn't the deciding factor. Just like the football coach says- practice doesn't make perfect, perfect practice makes perfect. IF you fly- seek out pilots who have been IPs in the branch you are entering- for instance- I had a WWII Hellcat and Stuka pilot as my glider CFIs at age 14- good training- I thought every flight had to have a loop roll and spin in it! I had normal C-150/152 training in college- BAD training for SUPT. I had 200 hours of Pitts time before SUPT- including intermediate level competition and basic 800' Airshow waivers- Good for S/A and all attitudes, NOT good for USAF SUPT as I had a USN hangarmate/form lead and the piston singles don't fly form like a T-37- the Pitts has instant go and instant stop compared to an old Cont. jet engine in the Tweet- so that took more getting used to than I wanted (fought ride 1 and 2 in form, CAFB 99-08), plus I was used to flying TOO close, which is too easy (aileron being washed out by lead's vorticies to know you are "in"...) compared to where the IPs wanted us on the wing.

Again- total time won't help- it's well known that experience helps at first, but others catch up over the course of the year- good exposure and practice will help. Some of my favorite flying after SUPT was taking casual status Lts on spin flights in a Citabria and pacing it like a T-37 sortie- visual dept/area work/spins/vis recovery- I know now it helped them out get ready for SUPT in a way that just going thru the PPL course prior to SUPT would not- after they got rid of the T-3 program.