Small, important question:
Can the newer, Biscotti powered SST-40 linear drivers, work with bleeding resistors and lighted tailcaps?
I ask because of the hardware differences, of course. 
It might be worth to try more relaxed settings for cookies and trackers blocking (don’t forget to return back if necessary).
For me it strictly depends if I wait 5-10 seconds after login page loading is complete (when all loading indicators disappear — not when login form just appears).
Might be obvious, but should mention as well: for any issues with Aliexpress check also your javascript/ad blockers (noscript, adblock, ublock, umatrix, …).
All of the mentioned helped me with various similar problems.
Is this the main S2+ thread?
Can anyone here share how to get the best price on a Convoy S2 or S2+? I’ll wait for a sale if need be if not too long a wait. I heard they can be as low as $10?
I’m not into modding or exotic requirements. Just quality product, which the S2 / S2+ I have seems to be (do different sellers on different website making these things on their own / quality can vary? Or they are just sellers?
I know of AliExpress, banggood and gearbest. Just get on their mailing lists to find out when there’s sales? Watch this thread?
You can look at this highlighted thread name in Recent Posts for deals on the S2+
My personal favorite is the one that has a blueish gray body with SST40 led and 5amp driver that can produce up to 1800 lumens when needed for a short period of time.
If you have no intention of changing parts in the S2+ you buy then the purple,cyan and orange S2+ with 7135*8 soldered in driver for $10.80 are great buys.
BangGood & Fin17 Special Deals
Oh! I was so excited. i went to that page. but the 10.80 listed on the front page was from 2018? they are back to 14 - 15 each now? Gotta just watch that page too I guess?
Deals come and go.
I really should pull the trigger on my cart on AE instead of it sitting there, sigh.
Hi Simon, I’m just curious. Have you stopped producing the earlier version of the linear driver with customizable modes?
If so, how many do you have left in stock? I like this driver and have an urge to hoard them if they will become unavailable. 
I’d just love to get a flashing kit for the 17mm 5A one! Would be good to try and write custom firmware.
I just built an S2+ with the new biscotti 5 amp driver.
Amazingly it appears to work with a lighted tailcap. No problems changing modes or using the programming function.
Good stuff!
That sounds good.What else is in your custom S2+ build?
18350 tubed orange S2+ with 2700K sst20 and 60 degree TIR optic. Made it for a friend.
This actual light won’t get the lighted tailcap. I just tested with the cap from a different light.
I made no modifications. Just installed as it came from Simon/Convoy.
It’s the 7135 Nanjing drivers w Biscotti that need the bleeder; the CC drivers are fine IIRC. If I could rewrite custom modes on those (even by rewriting/flashing firmware), I’d totally just go that.
Wow! In the past I installed a lighted tailcap in an S2+ with an LD-25, using ≈3.35 KΩ bleeder resistor. It ended up being quite bright, in fact too bright for my taste but the torch wasn't for me. And right now I have an H1-A with a 10 KΩ bleeder, yet to be installed, in a custom S21A whose parts are still to arrive home. We'll see what happens. 
it’s abundant in stock ,friend
Hi, will there be XHP50.2 3V emitters and flashlights with it on sale?? I would be interested in Convoy S2+ (17mm driver for SST40 5A) XHP50.2 3V
Looking for that as well. Need such a kit, as far as I understand (not sure): 0.46€ 88% OFF|TZT CH341A 24 25 Serie EEPROM Flash BIOS USB Programmierer Modul + SOIC8 SOP8 Test Clip Für EEPROM 93CXX/ 25CXX/24CXX DIY KIT|electronic smart|bios programmerelectronic driver - AliExpress
Supporting this question. I was looking for 6V 17mm or 20mm drivers for XHP50.2, but it’s not easy to find it small enough to fit S2+
This is the closest, but not available for sale: GXB172 - 50W 17mm Single Cell Boost LED Driver
I had run a 3v xhp50.2 in my UF-20 host with the 17mm (old fet driver that doesn’t have Biscotti) and it runs great! Single Vapcell VTC6 rewrap and it’s crazy bright. That driver will do 6+ A on a fresh high drain cell, more than the new version driver with Biscotti. Yes, the UI isn’t as easy to master as Biscotti but I’ll take power over function sometimes!