Hey Tommy - didn't notice that it was an HPDI motor . . . thought it was a 4S, but you're right, I guess they're almost as heavy! But it'll have much more mid-range torque than a 4S, so should be a strong running rig. If it has trouble hanging on plane at low speed, you might think about adding an SE Sport fin on the AV plate (no drilling req'd), and/or a stern lifting 4B prop. Those 2 changes totally changed the planing characteristics of my rig, for the better!
Man that's a huge gas tank for a 20! I hope it's got plenty baffles in it! Otherwise, that much gas sloshing around in a partially full tank might cause some really weird handling sensations! Regarding hydraulic steering, I was amazed to discover that the modern Sea Star systems only provide about 60% of full rotation that motor is capable of! Before adding the bracket, I had a motor on transom with a home made Hynautic system I designed myself with enough travel to put the motor on the stops. I added the bracket and Sea Star system at same time, and it took me a while to realize that the substantial increase in my low turning circle was due to the steering system and not the "longer boat" effect of the bracket!
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