With the new ATF 41P/F coming down I am trying to round out my suppressor battery. I should have the Form 4’s filled on a pair of Ultra 7’s before July. A really amazing can with a LOT of versatility. I already have a Gemtech HALO, Silencerco Sparrow, and a 9mm pistol can. The Ultra 7 (30cal) suppressors will be used on all precision, hunting, and ADC set-ups. Bolt and gas guns. The HALO will be used for any high volume training or hypotheticals. The Sparrow sees the most use and I have through about an additional dissassembleable rimfire can. Where would the Ultra 7 not be your first choice for a centerfire 30cal and below can? What holes or gaps do you see in the above list? Any changes or suggestions you would recommend?