I have a 1982 Bomber Bassmaster boat & I am wanting to install keelshield or keelguard, but the boat rests on the front bow keel roller which according to the websites of the keelguard folks cannot be or it will compromise the product, create too much friction. I can lower the bow keel roller about an inch, but the way the bunks are designed on my trailer I think it will only drop the bow an inch & still the weight will rest on the roller. So I am wanting to raise the bunks using adjustable brackets, but am concerned of getting the boat too high which would make loading or unloading a problem, any info would be appreciated.