I prefer 4 strokes so, this is just my opinion, others will vary:
Stick with the 110; the 4 stroke won't rev anywhere near as high as the CR80 but, it'll have bucketloads more low end torque, which is where you need it...
2 stroke engines rev high but, they don't produce any real torque until at least 5000rpm (often referred to as the power band), a 4 stroke power band is petering off by the same RPM but, the 2 stroke is in its wake...
Having said that, don't base your decision on my opinion alone, wait for a few others to chime in...