divorced 2 years and ex has primary physical custody. state of virginia.

due to my job where I travel a lot (70-90% of the year) the ex got primary physical custody. I only kept that job due to job security and i was able to provide my family with the life that they needed as the ex did not want to work. I recently switched jobs to one where I no longer have to travel (pay decrease).

I am trying to get 50/50 custody, but during the mediation (virginia) the ex stated my 10 year old son does not want to stay with me half the time. but my 8 year old son does not care either way. she also stated she only wants to give me 30/70 custody, which comes out to every other weekend, and maybe a few additional weeks during the summer.

i know my 10 year old, does not have a say in the courts. but should i just accept the 25/75 to keep my son happy? i know he thinks this because he is use to being with my ex more than me due to my job in the past. but i feel like now that i have the opportunity to spend time with my kids i should try to spend as much time as possible with them. i just don't want to come off as an asshole. i feel like i have missed out so much on their lives and that i only have a short time to make it up, and if the only time i can make it up is every other weekend it seems like a losing battle.