
Logitech G
G600 MMO Gaming Mouse
Customizable MMO workhorse, durable, but discontinued and pricey.

Running these analyses costs money. Buy through my links to help keep lights on! I may get a small commission.
Could also look at pulsar x2a (ambi shape but has buttons on both sides) or Pulsar X3 LHD (ergo shape but left handed) x2a (out of stock on pulsar's site, looks like only "mini" white version in stock on amazon [https://www.pulsar.gg/products/x2a-gaming-mouse](https://www.pulsar.gg/products/x2a-gaming-mouse) [https://www.amazon.com/Pulsar-Gaming-Gears-Lightweight-Optical/dp/B0CLCXBGW7?th=1](https://www.amazon.com/Pulsar-Gaming-Gears-Lightweight-Optical/dp/B0CLCXBGW7?th=1) x3 LHD [https://www.pulsar.gg/products/x3-lhd-gaming-mouse?variant=46017526137086](https://www.pulsar.gg/products/x3-lhd-gaming-mouse?variant=46017526137086)
I think there is no medium size in left handed version, if you check pulsar site. Ive just ordered from here, if you are from Europe. [https://www.proshop.de/?s=pulsar+x3+lhd](https://www.proshop.de/?s=pulsar+x3+lhd) Im using currently the X2A in medium size, and if compare the dimensions, the X3 mini is slightly bigger
doesn't have sidebuttons on both sides though. best options for sidebuttons on both sides would probably be Pulsar x2a (comes in wired and wireless) or Logitech G Pro Lightspeed 2 (not the superlight, this one has buttons on both sides but weighs about 80g) i can't think of any other ambi mice with buttons on both sides off the top of my head though.
It might be a bit pedantic, but I don't know how "on the fly" it is to have to stop using the mouse, turn it over, and then fumble through a potential series of button presses/wheel scrolling to dial in a desired change. I do love my Pulsar X2A eS, but if I want to change the DPI "on the fly", it can be a lot less convenient to swap to a different DPI than it is the standard X2A, which because that version supports driver software, I can rebind any of the buttons/wheel to do that job to actually change DPI on the fly. the Pulsar eS mice are great for being able to tune in and trust the settings to work at a desired performance level on any computer the mouse is plugged into, and then be able to tweak as needed, but I would consider it mostly a set and forget kind of deal rather than something I would want to actively be fiddling with on the regular
You can consider the pulsar x2a this mouse is smaller than the g903 or the Logitech g pro 2 basically a refreshed version of the og gpw
Pulsar x2a is the best mouse for claw/fingertip hybrid because it is an Ambi mouse and on the lightweight side, pulsar x3 left handed I wouldn't recommend it for fingertip but for palm and claw sure, g pro 2 lightspeed not good for fingertip because it's heavy and big for claw it feels amazing.
Yes the x2a side buttons are fully remappable
F1 is a rvm clone hitscan is a slightly modified rvm shape if you like big humps in the back i recommend the x2h cl or x2n
Honestly, the X2A and G Pro 2 might be the two best options.

Logitech G
G600 MMO Gaming Mouse
Customizable MMO workhorse, durable, but discontinued and pricey.

VXE
R1 Series
Budget king: lightweight, great value, long battery life.

Hitscan
Hyperlight
Ultra-light (39g) for small hands; sensor is outdated.

Razer
Viper V3 Pro
Adaptable shape, optical clicks, but scroll wheel malfunctions.

Logitech G
G502 HERO High Performance Gaming Mouse
Durable, heavy workhorse with free-spin scroll; prone to double-clicking.

Ranked #1
Hitscan - Hyperlight

Ranked #1
Teevolution - Terra

Ranked #1
Razer - Viper Ultimate

Ranked #1
ROCCAT (Turtle Beach) - Kone Pro

Ranked #1
Logitech G - G600 MMO Gaming Mouse

Ranked #1
Razer - Naga Trinity