Mid-stage sales leader - feedback wanted on rebuilding our sales deck template with an ai presentation tool?

Sales leader at a series B SaaS, 14 AEs reporting up. 5 years at the company.

Our sales deck template is 32 slides. AEs report customizing 4-5 slides per prospect. Conversation in pipeline meetings consistently surfaces that prospects "tune out" by slide 14.

Considering a full rebuild this quarter with an ai presentation tool to make per-prospect customization fast.

The idea:

• Core deck drops to 9 slides
• Each AE has an ai presentation tool workflow to produce 3-4 prospect-custom slides per opp
• Custom slides answer THIS prospect's questions, not "what we do generally"
• Total deck per opp: 12-14 slides, half customized

Feedback wanted from other B2B sales leaders or AEs:

1. Did anyone do the "core deck shorter + per-prospect customization" move and what was the win rate impact?
2. Is per-prospect customization actually meaningful or does it just feel meaningful to the AE?
3. Where's the wall, at what deal size does customization stop being worth the time?

The honest concern: I might be over-engineering. The current 32 slide deck wins ~22% of pipeline. The cost of the change is real (training, deck infrastructure, AE habit change). The benefit might be marginal.

What's your decision logic on deck infrastructure changes?