Any thoughts? yes.

1. Just because a ball is for "medium-heavy" does not mean, everyone will be able to use it for that.

2. Actually reviews indicated its potential range was for mostly for medium oil.

3. There are particle pearls and then there are particle pearls. Their designed strength depends on 3 items:
a) the strength of the base resin in which the particles are placed.
b) the type of particles and their load (% of particles to resin)
c) the strength of the core.

4. The AMP had a super low RG with a very high differential. BTM's (Bowling This Month) review indicated extreme length for a ball that handled medium oil and an EXTREME backend at that time, 2003.

When I analyze those results, it tells me that the ball had a mild combination of resin base & particle load. Many particle pearl balls today get much less length and usually handle medium to medium-heavy oil. So relatively speaking this was a mild particle pearl.

Regarding the Double Agent, reviews, so far, while they don't always tell you the whole stroy as it pertains to your own use of this ball, indicate the DA, a sanded dull particle pearl, will be very early hooking compared to the AMP and is designed, as it comes out of the box, for medium-heavy to heavy oil. It also has a very low RG and a high differential for lots of flare.

Maybe the closest replacement for the AMP might be the Columbia U-Turn Particle pearl, as it gets lots of length and is suitable for medium oil. There are lots of other choices, but most particle pearls handle more oil than the AMP, on average. Almost everyone has easily adjustable coverstocks if you can do that or have that done.   SOme come dull like the Threshodl, Sniper, RS-P, Some come with a mild polish; some come highly polished, like the Enriched Uranium, Ambush, Pyro.

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"None are so blind as those who will not see."