I have heard that a 1.7:1 r/s is about perfect, but the difference between perfect and a not-so-good 1.5:1 r/s performance wise isn't that big a deal unless you want RPM the snot out of your engine.
The biggest problem with a short r/s ratio is increased piston speed and cylinder side loading. Shortens the life of your cylinder bores and hurts high RPM reliability.
The shorter stroke also increases the rod angularity which, believe it or not, can slightly increase the "effective stroke" of the motor. The shorter rod will also have higher piston acceleration rates which can very slightly increase low speed volumetric efficiency (low end TQ). The downside to higher acceleration rates is ring flutter and some other problems that can occur at higher RPM (like 6000+).
If your engine will stay below 6,000 a poor r/s ratio is not that big a deal - and might actually help power below say 4,000 RPM. However if you really want max power out of this combo and plan to race it a better r/s ratio (like at least 1.5:1) would be a good idea.
Just my opinion.
PS. there's nothing wrong with a high wrist pin locaton to accomodate a longer rod. This typically makes for a much lighter piston/rod assembly which helps your engine rev faster and adds to high RPM reliability. Even if the wrist pin enters the oil ring area there are pistons out there with spacers that overcome this little problem easily.
E85 racer and E85 carb builder
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68 Camaro, E85 powered 427" small block. 9.96 @ 133 MPH, 1.319 sixty foot on motor. 5.92 eighth @ 116 with a 1.42 sixty breaking beams with back tire on the bottle