Rule303's technique is the one I have always used. Chamber the round, then let the striker down to 1/2cock.
So far no problems! My commercial CLLE is set up the same
The 'top hat' style striker heads on these and the early SMLE's make an easy time of it. The late flat sided style on the SMLE not so much so. But on an SMLE, there's a safety to engage to hold the striker off full cock anyway.

One of my other Lee Sporters has the BSA tang safety. It's convenient of course,,but would be more so for me if it didn't operate backwards from what I'm used to using!
It doesn't cam the striker off the sear like the SMLE safety or the LongLee bolt thumb safety, but it's at least as secure as most SxS shotgun safety setups are in blocking the trigger/sear from movement.