[UK-CONTEST] This Years IOTA Antenna Question

[MM0BQI]

Looking for some advice please.  (Please note, no plug for contest operation!)

Main antenna for 40m is a full sized vertical with elevated radials which works very well.  
In the past I have also paralleled up a 40m dipole with my low 80m dipole.  This year the 80m dipole will be strung between two 10m supports running NE-SW.  Will keeping the 40m dipole give me any advantages (into G/EU?), is it worth the extra effort?

I have the option to take a Cushcraft D3 (10-15-20) rotary trapped dipole which could replace my nested dipoles mounted on fishing poles.  Would I notice the difference in signal strengths between the trapped dipole and the H/B full sized ones?

This year is a light weight camping operation from the second highest point of the island.  Rather then being blocked completely to the west the antennas will have a clear take of in all directions (except due south)
It's a long climb but I hope the new site will be a massive improvement.

73
Jim,  MM0BQI