Best lifter out there right now are Woods directional lifters but the stock lifter are sufficient for most cams. The rest offer no advantages and cost more. Some such as the Jims are risky IMHO
I'm assuming the directional lifters have an offset PR hole, but little information is available from woods regarding thier product. hard for someone to do research on a product when little info is available.
For obvious reasons I am NOT going back to OE lifters. THe "robust design" as you called it, failed for 3 of the 4 lifters in my motor and others here on the forum and other forums as well...
Run hard?,,, yes, as I expect everything I own to tolerate. Most days however, the bike is a DD, with little to no traffic, with roughtly 20 miles one way.... so figure 200/week, not including weekend rides, (the island is all of 112 miles around, so creating a 150 mile ride/day can be challenging.)