I has not talking about Honda OEM reed cages, they don't loose screws on OEM cylinders (vibration is held in check with a balanced system). While I may not have been clear enough when stating "I don't suggest buying or using machined Reed sets with Pedals held by multiple screws"...what I meant to convey was the new Billet-Machined Reed Assemblies for sale, I have seen +3 engines come into the shop from customers who purchased these Billet-machined Reed sets that lost the screws, and also know of one member on this forum who has experienced the same issue on a BB Sphynx.Not everyone is interested in peak hp. I've never had a screw come loose, but it is possible although it sounds more like a poor maintenance/installation issue. It's not like the engineers at honda didn't know what they were doing. Also your motor ingesting anything other than fuel and air is likely to cause damage. If a few grains of sand will cause damage, then what do you think chunks/pieces of carbon fiber will do? There are chances you take running any product and nothing is foolproof. I'm just saying. Personally I'll stick to my cr cage and boot on my R and my V 3's that came on my yz250. I'm quite happy with both. IMO it all just depends on what type of motor you're building and what kind of power you want out of your engine. Obviously everyone will have different opinions and I'm just stating mine, not trying to start a keyboard war.
Little screws on BB's seems to be a problem waiting to happen, likely the extra vibration is partially to blame on some of these un-balanced engines, however; these Machined/Billet reed sets are marketed for BB's as well...don't use these on BB cylinders.
UNS has a good point as well; why risk it, and honestly Machined Billet Reed assemblies with little screws is a bad thoughtout design IMO.