assistant: For mild overpronation at 30 mi/wk, you want a shoe with real medial support but not overkill—something that guides your foot without fighting your natural landing. The two standouts here are the **Brooks Glycerin GTS v22** and **Saucony Guide v18**, both built for exactly this job. **Brooks Glycerin GTS v22** is the more supportive of the two. Doctors of Running calls it a return to premium stability roots, with a medial post and lateral guide rails that deliver "high stability with distinct arch pressure." The DNA Tuned midsole is firmer than the previous version and breaks in to feel bouncier—reviewers note it feels lighter than its 303g weight once the foam settles. The 10mm drop is on the higher side, which many runners with mild overpronation prefer. One caveat: the upper starts snug and takes 15–20 miles to break in, and it runs slightly short, so size up half a size if you're between sizes. **Saucony Guide v18** is the lighter, more versatile pick. At 286g with a 6mm drop, it's snappier and more responsive than the Glycerin GTS—better if you want stability without sacrificing some liveliness for easy runs. Doctors of Running notes it's "mild stability" and "fine for easy runs," making it a solid all-rounder for your 30 mi/wk mix. It's also $25 cheaper and true to size with a wide forefoot. The third option, **Saucony Endorphin Azura v1**, is worth a mention if you want something more versatile: Doctors of Running calls it their #1 shoe of 2026, a stable-neutral trainer with a late-stage rocker that handles both easy miles and faster efforts. It's not a dedicated stability shoe like the Glycerin GTS, but it's rated for mild overpronation and gives you more speed-work capability if you ever want to add tempo runs or intervals. **Which appeals more to you—a firmer, higher-drop stability shoe (Glycerin GTS), or something lighter and snappier that still handles overpronation well (Guide v18)?**

assistant: The **Brooks Adrenaline GTS v25** is still solid, but it's been outpaced by the **Brooks Glycerin GTS v22** for stability-focused runners like you. Here's the shift: Your Adrenaline GTS v25 has mixed expert reception—it's soft and cushioned, but reviewers note it's lost some of the sharper stability feel that made earlier versions the go-to. The DNA LOFT v3 midsole is plush, which is nice for easy days, but it doesn't deliver the same medial-post clarity or control that a runner with overpronation benefits from. The **Glycerin GTS v22** is the new standard for stability. Doctors of Running calls it a return to "premium stability roots"—it's firmer than your Adrenaline, with a more pronounced medial post and lateral guide rails that give you real arch pressure and control. The DNA Tuned midsole breaks in to feel bouncier and lighter than its 303g weight, and once it settles (15–20 miles), it delivers the kind of responsive, supportive ride that the Adrenaline v25 lost. Same 10mm drop and stack height as your current shoe, so the transition is straightforward. If you want to stick with your Adrenaline GTS v25 for easy days, that's fine—it's still a capable daily trainer. But for the bulk of your 30 mi/wk, the Glycerin GTS v22 will give you better overpronation support and a more engaging ride overall. The **Saucony Guide v18** is a lighter alternative if you prefer something snappier and lower-drop (6mm vs 10mm). Are you looking to rotate shoes, or replace your Adrenaline entirely?