Kolt45--More power was NEVER a reason to design the ETPG.
Adrian--thank you sir 
I am in possession of a Omer ETR 95cm and have been in the water with it for 26hours.
My ETR is no longer a "stock" Omer ETR, as I have "hau modified" it 
1. First thing I did was to remove all the mono shooting line, swivles, clips, etc and connect the reel line directly to the spear through the last fin hole in the spear. I have all my guns set up exactly this same way for MANY reasons.
2. Yesterday I removed the stock Omer bands (with metal wishbones) and replaced both bands with 5/8 Pursuit high performance bands and dynema wishbones and loops. This modification was a huge improvement as the ETR shoots WAY quieter, has crazy spear speed and the enclosed track top is no longer being rubbed away by the "stock" Omer metal wishbones.
3. I removed the Omer ETR loading pad. This was a no brainer for me as I have been shooting euro guns without loading pads for years (RA Vecta). The Omer ETR grip/handle with its reverse trigger is now my favorite of all my other euro guns.
4. I attached my standard 14in of mono with clip to the Omer ETR grip. I use this loop to hang my guns in the water off my yak, as a fish stringer till I can swim back to the yak to unload fish, to attach my float line to, and to run my arm through incase I need to use both hands while in the water.
My Omer ETR 95cm weighed 3lb 9oz with Omer 50 reel and 6.75mm spear BEFORE my modifications.
Thank you to everyone that has an interest in ETPG
ETPGs in different variations are now being produced and marketed by Mako and Omer so far. 