Heard back from Sam at Scalebirds who is a distributor for the Verners. TBO suspicion was correct, they just don't have enough engines out there with big hours on them yet. The 1000 is very conservative and should be getting raised to 1500 as soon as they have an engine in for analysis. Rebuild cost will be 1/3 cost of the new engine. Main issues they have seen is in cowling, in most cases the baffling install causes the engine to get hot. Shouldn't matter in this case as I'd prolly leave it open like Shane did. Inquired about the 11S for fun will report back with info.