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It is a compromise. The more weight you have on the front, the more straight you are relative to the bottom bracket on the rear wheel. This means your center of gravity is closer to the balance point, so less effort is required to stay in this position. On the other side, with more weight on the front, you need a bigger displacement from center of gravity to be able to rise the front wheel. You can compensate a lower bar by lowering your chest more during the first phase of a bunny hop. But it costs more energy and it is more difficult to execute correctly.   Bikes like these Giant were short and with a long and low front end. Do not forget that using a high rise bar reduces the distance between your hands and foot, like riding a frame with a shorter reach (and also shifts the weight distribution to your feet). Having a wide bar may also lower your upper body and puts more weight on the front.

For other guys possibly doing this, it is Chris King Threadfit 30 fitting 3 to be used with Eewings.  And Inspired will be releasing Canecreek Eewings bashring soon.  The existing Truvative Inspired bash is NOT compatible with Eewings cranks. 

Cranks: Look through your local classifieds/FB Marketplace for used Sram/Truvative DUB cranks. There should be some MTBers selling them usually.  Tube: This one you CAN go to Aliexpress from. Aliexpress "Ridenow" TPU tubes are excellent and lighter and cheaper than Tubolito tubes.  Rims: If you could stretch your budget a little more, Carbon rims from Light Bicycle would be the best. They are light, strong, and tubeless compatible to be run with an insert in the back.  If you are doing another wheel build, use alloy nipples and bladed spokes for extra weight savings.     

I find this story more interesting ahead of Miami GP more than the departure of Newey. https://www.autosport.com/f1/news/us-congress-members-demand-answers-from-liberty-over-andretti-f1-block/10605495/  

Ok.I did put my Inspired bar back on the bike and did tilt it a little bit back from vertical so that i could do bunnyhop easier.With this Pro bar was somehow easier to get balance point for backhop(i am still learning) but had to put a lot of energy for bunnyhoping.I have to try some compromise about and learn to backhop with high rise handlebar. Old dogs here were right,low and long fot pure trials and high and short for street ride. Be well people.