AD Army working on finishing ADSO, obligation up in 2022. Have the ability to decide on old vs new retirement system in 2018. Originally thought I'd do 20 and retire, but more likely to get out after ADSO after 13 years total. With the ability to have HPSP time count for reserves, considering doing additional 3 years to make a 20 year reserves retirement once out. Was curious since I had the choice, if taking the new system to get the match the remaining 4 years and then do reserves after would be worth it or should I chose the old system and then reserves retirement. A lot out there for how the blended retirement system affects an AD retirement, but not reserves (or if the transition from AD to reserves after 2018 will force me to take the new system once in the reserves). Anybody else looking into this?