assistant: You've got two solid stability options in the data that fit your overpronation and daily-training mileage well. **Brooks Glycerin GTS v22** is the more aggressive stability choice. It has a medial post (actual arch support, not just guide rails) paired with lateral guide rails — Doctors of Running calls it "one of the few current shoes retaining a medial post" and notes it delivers "high stability with distinct arch pressure." The DNA Tuned midsole is firmer than previous versions, which reviewers say gives you both support and a noticeable heel bounce. At 10 mm drop with a 39/29 mm stack, it's a traditional stability platform. True to size, though the upper starts snug and breaks in over 15–20 miles. Wide version available if needed. **$165.** **Saucony Guide v18** is the lighter, more flexible alternative. It's a mild-stability shoe (guide rails, no medial post) with a lower 6 mm drop and a more neutral ride overall — better if you want support without aggressive correction. Doctors of Running says it's "fine for easy runs" and "slightly snappier than v19," making it a good all-rounder for 30 mi/wk. Cheaper at **$140** and slightly lighter (286g vs 303g). True to size, wide forefoot. **Pick the Glycerin GTS v22 if** you want real medial-post support and don't mind a firmer, more traditional stability feel. **Pick the Guide v18 if** you prefer a lighter, more flexible shoe that still manages mild overpronation without aggressive correction. One quick question: does your overpronation feel significant (noticeable foot roll, knee tracking issues), or mild? That'll help me confirm the Glycerin GTS is the right call versus the Guide.

assistant: The **Brooks Adrenaline GTS v25** hasn't been dethroned — it's still a solid mild-stability daily trainer — but it's lost some ground to the **Brooks Glycerin GTS v22**, which is the better shoe for your overpronation and 30 mi/wk training load. Here's the shift: the Adrenaline v25 has "mixed reception" in the current data, and reviewers note it's been inconsistent across versions. The Glycerin GTS v22, by contrast, is "well-regarded" and represents a deliberate return to real stability. Doctors of Running calls v22 "a firmer, bouncier update that delivers higher stability via a medial post" — it's actually *more* supportive than the Adrenaline v25 despite sharing the same 10 mm drop and stack height (39/29 mm). The key difference: v22 has a true medial post (arch support) plus lateral guide rails, whereas the Adrenaline v25 relies on guide rails alone. For overpronation, that medial post matters. The v22 gives you "distinct arch pressure" (Doctors of Running) and feels more intentional about correction. The Adrenaline v25 is softer and bouncier but less architecturally committed to controlling pronation. **If you're happy in the Adrenaline v25 and it's working**, there's no urgent reason to switch — it's durable (300–400 mi) and true to size. But if you're looking for an upgrade within the Brooks stability line, the Glycerin GTS v22 is the newer, more purposeful choice for your overpronation profile. Does the Adrenaline v25 feel stable enough for your runs, or are you noticing foot roll or knee tracking issues that suggest you need more support?