Keep in mind that as soon as you make O-5 you will need an over grade waiver so being junior extends your life in the VTs. If there is a line of guys trying to get in, over grade waivers are scrutinized pretty heavily. The length if that line is determined by the market, specifically the airline market. Each squadron only gets a few.
Talk to your SAU CO or RDH. You may want to keep quiet so you can stay in the VTs longer and not need to find that dreaded non-flying (no currency) billet to keep drilling.