Bollocks
T20 are designed to swap pills for different colour AND when better pills are presented to market AND for when peeps who can and want to make upgrades.
You dont buy a T20 as a bic biro or one trick pony...thats the whole point of them. They are switchable and upgradeable as the tech 8mproves.
The best advice here is contact Andy at Ludicrous and ask him about what you want.
Also...i would go 3 mode not single as what works OK with one NV technology might not with another. One of my units strobes on low and med but is fine on high....if its one mode and strobes its useless.
In a battle of wits I refuse to engage with an unarmed person.
To one shot one kill, you need to seek the S. Kill only comes from Skill