26-27.5 I think. Yes you are right I use other guitars for recording but I also want to solve this issue with the choice of pickups for my own peace of mind, I don't want this guitar lying idle, I really like itWhat's the scale length on your Kiesel?
Shorter scale lengths sound less bright and less tight/focused. If the Lundgren sounds great in your M80M but bad in your other guitars, that might be a part of it. You could try to use lighter strings and tune up your other guitar, then record the parts and retune them in your DAW, but that might sound like a digital mess of glitch by the time you're done. The best option would be to just use the guitar that you like better to get the sound you like better.